Link to Builder
===============
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/65139

Link to Log File
=================
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/65139/steps/compile/logs/stdio

Error Log
==========
FAILED: obj/third_party/mesa/mesa_libglslcommon/ir_expression_flattening.obj 
ninja -t msvc -e environment.x64 -- "c:\b\c\win_toolchain\vs_files\d3cb0e37bdd120ad0ac4650b674b09e81be45616\vc\bin\amd64/cl.exe" /nologo /showIncludes /FC @obj/third_party/mesa/mesa_libglslcommon/ir_expression_flattening.obj.rsp /c ../../third_party/mesa/src/src/glsl/ir_expression_flattening.cpp /Foobj/third_party/mesa/mesa_libglslcommon/ir_expression_flattening.obj /Fd"obj/third_party/mesa/mesa_libglslcommon_cc.pdb"
c:\b\c\win_toolchain\vs_files\d3cb0e37bdd120ad0ac4650b674b09e81be45616\win_sdk\include\10.0.14393.0\um\winnt.h(20682): fatal error C1090: PDB API call failed, error code '23': '(
[8426/41298] CXX obj/third_party/mesa/mesa_libglslcommon/hir_field_selection.obj

Looks like the failure in the framework. Assigning to Chromium sheriff for further updates.