The codesearch compile step is failing on https://build.chromium.org/p/chromium.infra.cron/builders/ChromiumOS%20Codesearch/builds/3536/steps/compile/logs/stdio

Error:

FAILED: ui_arc_unittests 
../../third_party/llvm-build/Release+Asserts/bin/clang++ -Wl,--fatal-warnings -fPIC -Wl,-z,noexecstack -Wl,-z,now -Wl,-z,relro -Wl,-z,defs -Wl,--no-as-needed -lpthread -Wl,--as-needed -fuse-ld=gold -B../../third_party/binutils/Linux_x64/Release/bin -Wl,--threads -Wl,--thread-count=4 -Wl,--icf=all -m64 -pthread -Werror --sysroot=../../build/linux/ubuntu_precise_amd64-sysroot -L/b/build/slave/ChromiumOS_Codesearch/build/src/build/linux/ubuntu_precise_amd64-sysroot/lib/x86_64-linux-gnu -Wl,-rpath-link=/b/build/slave/ChromiumOS_Codesearch/build/src/build/linux/ubuntu_precise_amd64-sysroot/lib/x86_64-linux-gnu -L/b/build/slave/ChromiumOS_Codesearch/build/src/build/linux/ubuntu_precise_amd64-sysroot/usr/lib/x86_64-linux-gnu -Wl,-rpath-link=/b/build/slave/ChromiumOS_Codesearch/build/src/build/linux/ubuntu_precise_amd64-sysroot/usr/lib/x86_64-linux-gnu -L/b/build/slave/ChromiumOS_Codesearch/build/src/build/linux/ubuntu_precise_amd64-sysroot/usr/lib/gcc/x86_64-linux-gnu/4.6 -Wl,-rpath-link=/b/build/slave/ChromiumOS_Codesearch/build/src/build/linux/ubuntu_precise_amd64-sysroot/usr/lib/gcc/x86_64-linux-gnu/4.6 -L/b/build/slave/ChromiumOS_Codesearch/build/src/build/linux/ubuntu_precise_amd64-sysroot/usr/lib -Wl,-rpath-link=/b/build/slave/ChromiumOS_Codesearch/build/src/build/linux/ubuntu_precise_amd64-sysroot/usr/lib -Wl,-rpath-link=. -Wl,--disable-new-dtags -Wl,-rpath=\$ORIGIN/. -Wl,-rpath-link=. -Wl,-rpath=\$ORIGIN/. -Wl,-rpath-link=. -o "./ui_arc_unittests" -Wl,--start-group @"./ui_arc_unittests.rsp" ./libbase.so ./libmojo_system_impl.so ./libash.so ./libbindings.so ./libmojo_public_system_cpp.so ./libmojo_public_system.so ./libipc.so ./libgeometry.so ./libskia.so ./libbluetooth.so ./libchromeos.so ./libdbus.so ./libcc.so ./libcc_surfaces.so ./libdevice_gamepad.so ./libgpu.so ./libgles2_utils.so ./libgfx.so ./libicui18n.so ./libicuuc.so ./librange.so ./libgl_wrapper.so ./libplatform.so ./libgl_init.so ./libui_base.so ./libui_data_pack.so ./libevents_base.so ./liburl.so ./libaura.so ./libcompositor.so ./libmanager.so ./libdisplay.so ./libdisplay_types.so ./libdevices.so ./libviews.so ./libui_base_ime.so ./libevents.so ./libui_views_mus_lib.so ./libgles2_implementation.so ./libmojo_common_lib.so ./libwm.so ./libcrcrypto.so ./libboringssl.so ./libnet.so ./libprotobuf_lite.so ./libmessage_center.so ./libbase_i18n.so ./libuser_manager.so ./libkeyed_service_core.so ./libprefs.so ./libonc.so ./libkeyboard.so -Wl,--end-group  -ldl -lrt -ldbus-1 -lpthread -lnss3 -lnssutil3 -lsmime3 -lplds4 -lplc4 -lnspr4 
gen/cc/ipc/mojo_compositor_frame_sink.mojom.h:328: error: undefined reference to 'cc::mojom::MojoCompositorFrameSinkStubDispatch::Accept(cc::mojom::MojoCompositorFrameSink*, mojo::internal::SerializationContext*, mojo::Message*)'
gen/cc/ipc/mojo_compositor_frame_sink.mojom.h:377: error: undefined reference to 'cc::mojom::MojoCompositorFrameSinkClientStubDispatch::Accept(cc::mojom::MojoCompositorFrameSinkClient*, mojo::internal::SerializationContext*, mojo::Message*)'
gen/cc/ipc/mojo_compositor_frame_sink.mojom.h:337: error: undefined reference to 'cc::mojom::MojoCompositorFrameSinkStubDispatch::AcceptWithResponder(cc::mojom::MojoCompositorFrameSink*, mojo::internal::SerializationContext*, mojo::Message*, mojo::MessageReceiverWithStatus*)'
gen/cc/ipc/mojo_compositor_frame_sink.mojom.h:386: error: undefined reference to 'cc::mojom::MojoCompositorFrameSinkClientStubDispatch::AcceptWithResponder(cc::mojom::MojoCompositorFrameSinkClient*, mojo::internal::SerializationContext*, mojo::Message*, mojo::MessageReceiverWithStatus*)'
../../mojo/public/cpp/bindings/lib/binding_state.h:109: error: undefined reference to 'cc::mojom::MojoCompositorFrameSink::Name_'
../../mojo/public/cpp/bindings/lib/binding_state.h:109: error: undefined reference to 'cc::mojom::MojoCompositorFrameSinkClient::Name_'
gen/cc/ipc/mojo_compositor_frame_sink.mojom.h:444: error: undefined reference to 'vtable for cc::mojom::MojoCompositorFrameSinkRequestValidator'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: the vtable symbol may be undefined because the class is missing its key function
gen/cc/ipc/mojo_compositor_frame_sink.mojom.h:448: error: undefined reference to 'vtable for cc::mojom::MojoCompositorFrameSinkClientRequestValidator'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: the vtable symbol may be undefined because the class is missing its key function
../../mojo/public/cpp/bindings/lib/interface_ptr_state.h:194: error: undefined reference to 'cc::mojom::MojoCompositorFrameSinkClient::Name_'
../../mojo/public/cpp/bindings/lib/interface_ptr_state.h:202: error: undefined reference to 'cc::mojom::MojoCompositorFrameSinkClientProxy::MojoCompositorFrameSinkClientProxy(mojo::MessageReceiverWithResponder*)'
clang: error: linker command failed with exit code 1 (use -v to see invocation)