All of the chrome (internal) pfq informational builders started failing Mon, Jun 13 around 9:30 am:

https://uberchromegw.corp.google.com/i/chromeos.chrome/builders/x86-alex-tot-chrome-pfq-informational/builds/20309
https://uberchromegw.corp.google.com/i/chromeos.chrome/builders/lumpy-tot-chrome-pfq-informational/builds/19641
https://uberchromegw.corp.google.com/i/chromeos.chrome/builders/tricky-tot-chrome-pfq-informational/builds/1102
https://uberchromegw.corp.google.com/i/chromeos.chrome/builders/peach_pit-tot-chrome-pfq-informational/builds/1746
https://uberchromegw.corp.google.com/i/chromeos.chrome/builders/cyan-cheets-tot-chrome-pfq-cheets-informational/builds/175
https://uberchromegw.corp.google.com/i/chromeos.chrome/builders/veyron_minnie-cheets-tot-chrome-pfq-cheets-informational/builds/168

The compile error looks like:

chromeos-chrome-53.0.2767.0_alpha-r1: [61/18392] CC obj/third_party/khronos_glcts/framework/qphelper/qphelper.qpTestLog.o
chromeos-chrome-53.0.2767.0_alpha-r1: FAILED: armv7a-cros-linux-gnueabi-gcc -B/usr/x86_64-pc-linux-gnu/armv7a-cros-linux-gnueabi/binutils-bin/2.25.51-gold -MMD -MF obj/third_party/khronos_glcts/framework/qphelper/qphelper.qpTestLog.o.d -DV8_DEPRECATION_WARNINGS '-DDEQP_TARGET_NAME="chrome-gpu-command-buffer"' -DDEQP_SUPPORT_GLES2=1 -DDEQP_SUPPORT_EGL=1 -DGTF_API=GTF_GLES20 -D_FILE_OFFSET_BITS=64 -DGOOGLE_CHROME_BUILD -DENABLE_RLZ -DUI_COMPOSITOR_IMAGE_TRANSPORT -DUSE_AURA=1 -DUSE_ASH=1 -DUSE_PANGO=1 -DUSE_CAIRO=1 -DUSE_CRAS=1 -DUSE_OZONE=1 -DUSE_DEFAULT_RENDER_THEME=1 -DUSE_LIBJPEG_TURBO=1 -DIMAGE_LOADER_EXTENSION=1 -DENABLE_WEBRTC=1 -DENABLE_MEDIA_ROUTER=1 -DUSE_PROPRIETARY_CODECS -DENABLE_PEPPER_CDMS -DENABLE_NOTIFICATIONS -DENABLE_WAYLAND_SERVER=1 -DUSE_UDEV -DENABLE_TASK_MANAGER=1 -DENABLE_EXTENSIONS=1 -DENABLE_PDF=1 -DENABLE_PLUGINS=1 -DENABLE_SESSION_SERVICE=1 -DENABLE_THEMES=1 -DENABLE_PRINTING=1 -DENABLE_PRINT_PREVIEW=1 -DENABLE_SPELLCHECK=1 -DENABLE_CAPTIVE_PORTAL_DETECTION=1 -DENABLE_APP_LIST=1 -DENABLE_SUPERVISED_USERS=1 -DENABLE_MDNS=1 -DENABLE_SERVICE_DISCOVERY=1 -DENABLE_HANGOUT_SERVICES_EXTENSION=1 -DV8_USE_EXTERNAL_STARTUP_DATA -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -D_XOPEN_SOURCE=500 -DQP_SUPPORT_PNG -DUSE_LIBPCI=1 -DUSE_NSS_CERTS=1 -DOS_CHROMEOS=1 -DNDEBUG -DNO_UNWIND_TABLES -DOFFICIAL_BUILD -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -Igen -I../../../../../../../home/chrome-bot/chrome_root/src/third_party/khronos_glcts/framework/delibs/debase -I../../../../../../../home/chrome-bot/chrome_root/src/third_party/khronos_glcts/framework/delibs/depool -I../../../../../../../home/chrome-bot/chrome_root/src/third_party/khronos_glcts/framework/delibs/dethread -I../../../../../../../home/chrome-bot/chrome_root/src/third_party/khronos_glcts/framework/delibs/deutil -I../../../../../../../home/chrome-bot/chrome_root/src/third_party/libpng -I../../../../../../../home/chrome-bot/chrome_root/src/third_party/zlib -pthread -fno-strict-aliasing -Wno-extra -Wno-unused-parameter -Wno-missing-field-initializers -fvisibility=hidden -pipe -fPIC -g -Wno-unused-local-typedefs -Wno-maybe-uninitialized -march=armv7-a -mtune=generic-armv7-a -mfpu=neon -mfloat-abi=hard -mthumb --sysroot=/build/veyron_minnie-cheets -O2 -fno-ident -fdata-sections -ffunction-sections -fno-unwind-tables -fno-asynchronous-unwind-tables -gsplit-dwarf -pipe -march=armv7-a -mtune=cortex-a15 -mfpu=neon -mfloat-abi=hard  -c ../../../../../../../home/chrome-bot/chrome_root/src/third_party/khronos_glcts/framework/qphelper/qpTestLog.c -o obj/third_party/khronos_glcts/framework/qphelper/qphelper.qpTestLog.o
chromeos-chrome-53.0.2767.0_alpha-r1: ../../../../../../../home/chrome-bot/chrome_root/src/third_party/khronos_glcts/framework/qphelper/qpTestLog.c: In function 'pngWriteData':
chromeos-chrome-53.0.2767.0_alpha-r1: ../../../../../../../home/chrome-bot/chrome_root/src/third_party/khronos_glcts/framework/qphelper/qpTestLog.c:656:34: error: dereferencing pointer to incomplete type
chromeos-chrome-53.0.2767.0_alpha-r1:      Buffer* buffer = (Buffer*)png->io_ptr;

I suspect this change since it appears to be png related:

Update libpng to 1.6.22

BUG= 599917 
BUG= 618061 

Review-Url: https://codereview.chromium.org/2021403002
Cr-Commit-Position: refs/heads/master@{#399464}

We need to either revert the change or quickly fix this.

(Note: unfortunately since this only appears to affect chrome (internal) builds, not external chromium builds, it did not show up on the chromium waterfall or trybots. It's an edge case we don't currently have trybot coverage for except in the PFQ informational builders. We should investigate fixing this at some point).