Add DriverBugWorkaroundsInGpuProcessPage to gpu_process_test.py

content/browser/gpu/gpu_data_manager_impl_private.cc

Index: content/browser/gpu/gpu_data_manager_impl_private.cc
diff --git a/content/browser/gpu/gpu_data_manager_impl_private.cc b/content/browser/gpu/gpu_data_manager_impl_private.cc
index fd3b22531ee873eb498a649c44f6153b58cf9eca..a48550e544a557458437ef098230960c4a8b0293 100644
--- a/content/browser/gpu/gpu_data_manager_impl_private.cc
+++ b/content/browser/gpu/gpu_data_manager_impl_private.cc
@@ -642,6 +642,13 @@ void GpuDataManagerImplPrivate::UpdateGpuInfo(const gpu::GPUInfo& gpu_info) {
     complete_gpu_info_already_requested_ = false;
   }
 
+#if !defined(OS_MACOSX)
+  // TODO(j.isorce): Currenly the GPU process does not know about any secondary
+  // gpu. So for now it requires to do the identification here because gpu_info_
+  // contains both secondary_gpus and gl_vendor/gl_renderer information.
+  gpu::IdentifyActiveGPU(&gpu_info_);

[Ken Russell (switch to Gerrit), 2016/04/05 03:31:24]

This change looks wrong. It's not guaranteed at this point in the code that the
GPUInfo is complete, and IdentifyActiveGPU essentially requires it to be
complete (i.e., that it contains GL_RENDERER and GL_VENDOR strings). This is why
IdenifyActiveGPU is currently only called once the GL strings are available.

+#endif
+
   UpdateGpuInfoHelper();
 }
 
@@ -737,6 +744,8 @@ void GpuDataManagerImplPrivate::AppendGpuCommandLine(
       gpu_info_.driver_vendor);
   command_line->AppendSwitchASCII(switches::kGpuDriverVersion,
       gpu_info_.driver_version);
+  command_line->AppendSwitchASCII(switches::kGpuDriverDate,
+      gpu_info_.driver_date);
 }
 
 void GpuDataManagerImplPrivate::AppendPluginCommandLine(