Chrome Version       : 52.0.2739.2

Flaked in the waterfall at
 - https://build.chromium.org/p/chromium/builders/Win/builds/43482

Flaked in my tryjob at
 - https://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_compile_dbg_ng/builds/192144

Error like

[14176/33705] CXX obj\chrome\browser\media\router\mojo\media_router_test_support.media_router_mojo_test.obj
FAILED: obj/chrome/browser/media/router/mojo/media_router_test_support.media_router_mojo_test.obj 
ninja -t msvc -e environment.x86 -- C:\b\build\slave\cache\cipd\goma/gomacc "C:\b\depot_tools\win_toolchain\vs_files\95ddda401ec5678f15eeed01d2bee08fcbc5ee97\VC\bin\amd64_x86\cl.exe" /nologo /showIncludes /FC @obj\chrome\browser\media\router\mojo\media_router_test_support.media_router_mojo_test.obj.rsp /c ..\..\chrome\browser\media\router\mojo\media_router_mojo_test.cc /Foobj\chrome\browser\media\router\mojo\media_router_test_support.media_router_mojo_test.obj /Fdobj\chrome\browser\media\router\media_router_test_support.cc.pdb 
c:\b\build\slave\win\build\src\services\shell\public\cpp\connect.h(10): fatalerror C1083: Cannot open include file: 'services/shell/public/interfaces/interface_provider.mojom.h': No such file or directory


Probably a missing dependency or hard_dependency or export_dependent_settings thing.

Maybe some pointers in  Issue 611898  or  Issue 611319  or  Issue 606829  will help fix the problem.

-> to amistry who has sheriff powers