Version: git commit 9755471c9184c02067587445e7781ec66309c214 psuedo-revision 428167
OS: Mac OS X El Capitan Version 10.11.6

What steps will reproduce the problem?
(1) Checkout the above version, gclient sync, and build with GN/ninja "ninja -C out/Default -j 100 unit_tests"
(2)
(3)

I also reproduced on the single file with:

ninja -C out/Default ../../chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_mouse_tracker.mm^

What is the expected output?

Nothing; the file simply builds.

What do you see instead?

/Users/rdsmith/goma/gomacc ../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF obj/chrome/browser/ui/ui/fullscreen_toolbar_mouse_tracker.o.d -DV8_DEPRECATION_WARNINGS -DENABLE_NOTIFICATIONS -DENABLE_PLUGINS=1 -DENABLE_PDF=1 -DENABLE_PRINTING=1 -DENABLE_BASIC_PRINTING=1 -DENABLE_PRINT_PREVIEW=1 -DENABLE_SPELLCHECK=1 -DUSE_BROWSER_SPELLCHECKER=1 -DNO_TCMALLOC -DUSE_EXTERNAL_POPUP_MENU=1 -DENABLE_WEBRTC=1 -DDISABLE_NACL -DENABLE_EXTENSIONS=1 -DENABLE_TASK_MANAGER=1 -DENABLE_THEMES=1 -DENABLE_SESSION_SERVICE=1 -DENABLE_SUPERVISED_USERS=1 -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD -DENABLE_MEDIA_ROUTER=1 -DFIELDTRIAL_TESTING_ENABLED -DCR_CLANG_REVISION=284979-1 -DCR_XCODE_VERSION=0800 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -DCOMPONENT_BUILD -D__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORE=0 -D_DEBUG -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DWTF_USE_DYNAMIC_ANNOTATIONS=1 -DUSE_CUPS -DTOOLKIT_VIEWS=1 -DGOOGLE_PROTOBUF_NO_RTTI -DGOOGLE_PROTOBUF_NO_STATIC_INITIALIZER -DHAVE_PTHREAD -DPROTOBUF_USE_DLLS -DSK_IGNORE_DW_GRAY_FIX -DSK_IGNORE_LINEONLY_AA_CONVEX_PATH_OPTS -DSKIA_DLL -DGR_GL_IGNORE_ES3_MSAA=0 -DSK_SUPPORT_GPU=1 -DSK_BUILD_FOR_MAC -DV8_USE_EXTERNAL_STARTUP_DATA -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DU_NOEXCEPT= -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DMESA_EGL_NO_X11_HEADERS -DENABLE_WEBSOCKETS -DBORINGSSL_SHARED_LIBRARY -DUSING_V8_SHARED -DUSING_V8_SHARED -DLEVELDB_PLATFORM_CHROMIUM=1 -DFEATURE_ENABLE_SSL -DFEATURE_ENABLE_VOICEMAIL -DEXPAT_RELATIVE_PATH -DGTEST_RELATIVE_PATH -DNO_MAIN_THREAD_WRAPPING -DNO_SOUND_SYSTEM -DWEBRTC_CHROMIUM_BUILD -DWEBRTC_POSIX -DWEBRTC_MAC -DXML_STATIC -DSSL_USE_OPENSSL -DHAVE_OPENSSL_SSL_H -DFEATURE_ENABLE_SSL -DLOGGING=1 -DNO_MAIN_THREAD_WRAPPING -DI18N_ADDRESSINPUT_USE_BASICTYPES_OVERRIDE=1 -DI18N_ADDRESS_VALIDATION_DATA_URL=\"https://chromium-i18n.appspot.com/ssl-aggregate-address/\" -Igen/chrome/browser/ui -I../.. -Igen -I../../third_party/khronos -I../../gpu -I../../third_party/libwebp -I../../third_party/protobuf/src -Igen/protoc_out -I../../third_party/protobuf/src -I../../skia/config -I../../skia/ext -I../../third_party/skia/include/c -I../../third_party/skia/include/config -I../../third_party/skia/include/core -I../../third_party/skia/include/effects -I../../third_party/skia/include/images -I../../third_party/skia/include/lazy -I../../third_party/skia/include/pathops -I../../third_party/skia/include/pdf -I../../third_party/skia/include/pipe -I../../third_party/skia/include/ports -I../../third_party/skia/include/utils -I../../third_party/skia/include/gpu -I../../third_party/skia/src/gpu -I../../third_party/skia/src/sksl -I../../third_party/icu/source/common -I../../third_party/icu/source/i18n -I../../third_party/mesa/src/include -I../../third_party/libwebm/source -I../../third_party/opus/src/include -I../../third_party/boringssl/src/include -Igen -I../../third_party/ced/src -I../../third_party/WebKit -Igen/third_party/WebKit -I../../v8/include -Igen/v8/include -Igen/ui/views/resources -Igen/chrome -Igen/chrome -Igen/chrome -Igen/chrome -Igen/components/strings -Igen/components/strings -Igen/components/strings -Igen/components/strings -I../../v8/include -Igen/v8/include -I../../third_party/re2/src -Igen/ui/resources -Igen/ui/resources -Igen -Igen/extensions -Igen/extensions -Igen/extensions -Igen -Igen/extensions/strings -I../../third_party/google_toolbox_for_mac -I../../third_party/google_toolbox_for_mac/src -I../../third_party/google_toolbox_for_mac/src/AppKit -I../../third_party/google_toolbox_for_mac/src/DebugUtils -I../../third_party/google_toolbox_for_mac/src/Foundation -I../../third_party/cacheinvalidation/overrides -I../../third_party/cacheinvalidation/src -I../../third_party/leveldatabase -I../../third_party/leveldatabase/src -I../../third_party/leveldatabase/src/include -Igen/components -Igen/components -I../../third_party/webrtc_overrides -I../../testing/gtest/include -I../../third_party -I../../third_party/webrtc_overrides -I../../third_party -I../../third_party/expat/files/lib -I../../third_party/zlib -I../../third_party/libaddressinput/src/cpp/include -I../../third_party/libaddressinput/chromium/override -Igen/third_party/libaddressinput -Igen -fno-strict-aliasing -fstack-protector-strong -fcolor-diagnostics -arch x86_64 -Wall -Werror -Wextra -Wpartial-availability -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-covered-switch-default -Wno-deprecated-register -Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override -Wno-shift-negative-value -Wno-undefined-var-template -Wno-nonportable-include-path -Wno-address-of-packed-member -O0 -gdwarf-2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk -mmacosx-version-min=10.8 -fvisibility=hidden -Xclang -load -Xclang ../../third_party/llvm-build/Release+Asserts/lib/libFindBadConstructs.dylib -Xclang -add-plugin -Xclang find-bad-constructs -Wheader-hygiene -Wstring-conversion -Wno-nonnull -Wexit-time-destructors -Wno-unused-function -fno-threadsafe-statics -fvisibility-inlines-hidden -Wno-undefined-bool-conversion -Wno-tautological-undefined-compare -std=c++11 -stdlib=libc++ -fobjc-call-cxx-cdtors -Wobjc-missing-property-synthesis -fno-rtti -fno-exceptions -c ../../chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_mouse_tracker.mm -o obj/chrome/browser/ui/ui/fullscreen_toolbar_mouse_tracker.o
../../chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_mouse_tracker.mm:78:24: error: 'window' is deprecated: first deprecated in macOS 10.6 [-Werror,-Wdeprecated-declarations]
  contentView_ = [[bwc window] contentView];
                       ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSCachedImageRep.h:28:1: note: 'window' has been explicitly marked deprecated here
- (NSWindow *)window NS_DEPRECATED_MAC(10_0, 10_6);
^
1 error generated.
ninja: build stopped: subcommand failed.

Please use labels and text to provide additional information.

Compiler version info:

I did some digging to try and figure out the command line that was actually producing the error, and I eventually came up with the following (which at least produces the same error):

../../third_party/llvm-build/Release+Asserts/bin/clang++ --version -fcolor-diagnostics -MMD -MF obj/chrome/browser/ui/ui/fullscreen_toolbar_mouse_tracker.o.d -DV8_DEPRECATION_WARNINGS -DENABLE_NOTIFICATIONS -DENABLE_PLUGINS=1 -DENABLE_PDF=1 -DENABLE_PRINTING=1 -DENABLE_BASIC_PRINTING=1 -DENABLE_PRINT_PREVIEW=1 -DENABLE_SPELLCHECK=1 -DUSE_BROWSER_SPELLCHECKER=1 -DNO_TCMALLOC -DUSE_EXTERNAL_POPUP_MENU=1 -DENABLE_WEBRTC=1 -DDISABLE_NACL -DENABLE_EXTENSIONS=1 -DENABLE_TASK_MANAGER=1 -DENABLE_THEMES=1 -DENABLE_SESSION_SERVICE=1 -DENABLE_SUPERVISED_USERS=1 -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD -DENABLE_MEDIA_ROUTER=1 -DFIELDTRIAL_TESTING_ENABLED -DCR_CLANG_REVISION=284979-1 -DCR_XCODE_VERSION=0800 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -DCOMPONENT_BUILD -D__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORE=0 -D_DEBUG -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DWTF_USE_DYNAMIC_ANNOTATIONS=1 -DUSE_CUPS -DTOOLKIT_VIEWS=1 -DGOOGLE_PROTOBUF_NO_RTTI -DGOOGLE_PROTOBUF_NO_STATIC_INITIALIZER -DHAVE_PTHREAD -DPROTOBUF_USE_DLLS -DSK_IGNORE_DW_GRAY_FIX -DSK_IGNORE_LINEONLY_AA_CONVEX_PATH_OPTS -DSKIA_DLL -DGR_GL_IGNORE_ES3_MSAA=0 -DSK_SUPPORT_GPU=1 -DSK_BUILD_FOR_MAC -DV8_USE_EXTERNAL_STARTUP_DATA -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DU_NOEXCEPT= -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DMESA_EGL_NO_X11_HEADERS -DENABLE_WEBSOCKETS -DBORINGSSL_SHARED_LIBRARY -DUSING_V8_SHARED -DUSING_V8_SHARED -DLEVELDB_PLATFORM_CHROMIUM=1 -DFEATURE_ENABLE_SSL -DFEATURE_ENABLE_VOICEMAIL -DEXPAT_RELATIVE_PATH -DGTEST_RELATIVE_PATH -DNO_MAIN_THREAD_WRAPPING -DNO_SOUND_SYSTEM -DWEBRTC_CHROMIUM_BUILD -DWEBRTC_POSIX -DWEBRTC_MAC -DXML_STATIC -DSSL_USE_OPENSSL -DHAVE_OPENSSL_SSL_H -DFEATURE_ENABLE_SSL -DLOGGING=1 -DNO_MAIN_THREAD_WRAPPING -DI18N_ADDRESSINPUT_USE_BASICTYPES_OVERRIDE=1 -DI18N_ADDRESS_VALIDATION_DATA_URL="https://chromium-i18n.appspot.com/ssl-aggregate-address/" -Igen/chrome/browser/ui -I../.. -Igen -I../../third_party/khronos -I../../gpu -I../../third_party/libwebp -I../../third_party/protobuf/src -Igen/protoc_out -I../../third_party/protobuf/src -I../../skia/config -I../../skia/ext -I../../third_party/skia/include/c -I../../third_party/skia/include/config -I../../third_party/skia/include/core -I../../third_party/skia/include/effects -I../../third_party/skia/include/images -I../../third_party/skia/include/lazy -I../../third_party/skia/include/pathops -I../../third_party/skia/include/pdf -I../../third_party/skia/include/pipe -I../../third_party/skia/include/ports -I../../third_party/skia/include/utils -I../../third_party/skia/include/gpu -I../../third_party/skia/src/gpu -I../../third_party/skia/src/sksl -I../../third_party/icu/source/common -I../../third_party/icu/source/i18n -I../../third_party/mesa/src/include -I../../third_party/libwebm/source -I../../third_party/opus/src/include -I../../third_party/boringssl/src/include -Igen -I../../third_party/ced/src -I../../third_party/WebKit -Igen/third_party/WebKit -I../../v8/include -Igen/v8/include -Igen/ui/views/resources -Igen/chrome -Igen/chrome -Igen/chrome -Igen/chrome -Igen/components/strings -Igen/components/strings -Igen/components/strings -Igen/components/strings -I../../v8/include -Igen/v8/include -I../../third_party/re2/src -Igen/ui/resources -Igen/ui/resources -Igen -Igen/extensions -Igen/extensions -Igen/extensions -Igen -Igen/extensions/strings -I../../third_party/google_toolbox_for_mac -I../../third_party/google_toolbox_for_mac/src -I../../third_party/google_toolbox_for_mac/src/AppKit -I../../third_party/google_toolbox_for_mac/src/DebugUtils -I../../third_party/google_toolbox_for_mac/src/Foundation -I../../third_party/cacheinvalidation/overrides -I../../third_party/cacheinvalidation/src -I../../third_party/leveldatabase -I../../third_party/leveldatabase/src -I../../third_party/leveldatabase/src/include -Igen/components -Igen/components -I../../third_party/webrtc_overrides -I../../testing/gtest/include -I../../third_party -I../../third_party/webrtc_overrides -I../../third_party -I../../third_party/expat/files/lib -I../../third_party/zlib -I../../third_party/libaddressinput/src/cpp/include -I../../third_party/libaddressinput/chromium/override -Igen/third_party/libaddressinput -Igen -fno-strict-aliasing -fstack-protector-strong -fcolor-diagnostics -arch x86_64 -Wall -Werror -Wextra -Wpartial-availability -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-covered-switch-default -Wno-deprecated-register -Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override -Wno-shift-negative-value -Wno-undefined-var-template -Wno-nonportable-include-path -Wno-address-of-packed-member -O0 -gdwarf-2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk -mmacosx-version-min=10.8 -fvisibility=hidden -Xclang -load -Xclang ../../third_party/llvm-build/Release+Asserts/lib/libFindBadConstructs.dylib -Xclang -add-plugin -Xclang find-bad-constructs -Wheader-hygiene -Wstring-conversion -Wno-nonnull -Wexit-time-destructors -Wno-unused-function -fno-threadsafe-statics -fvisibility-inlines-hidden -Wno-undefined-bool-conversion -Wno-tautological-undefined-compare -std=c++11 -stdlib=libc++ -fobjc-call-cxx-cdtors -Wobjc-missing-property-synthesis -fno-rtti -fno-exceptions -c ../../chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_mouse_tracker.mm -o obj/chrome/browser/ui/ui/fullscreen_toolbar_mouse_tracker.o

When I run that with --version I get:

clang version 4.0.0 (trunk 284979)
Target: x86_64-apple-darwin15.6.0
Thread model: posix
InstalledDir: /Users/rdsmith/Sandboxen/chrome/src/out/Default/../../third_party/llvm-build/Release+Asserts/bin