Clear shader disk cache after glProgramBinary failure.

gpu/command_buffer/service/memory_program_cache.cc

Index: gpu/command_buffer/service/memory_program_cache.cc
diff --git a/gpu/command_buffer/service/memory_program_cache.cc b/gpu/command_buffer/service/memory_program_cache.cc
index b24cbd7e42f74149e8d804f9ad973b165c91a95b..1bccb0140a85bac2f6b31810c991d787fb4623a4 100644
--- a/gpu/command_buffer/service/memory_program_cache.cc
+++ b/gpu/command_buffer/service/memory_program_cache.cc
@@ -12,6 +12,7 @@
 #include "base/metrics/histogram_macros.h"
 #include "base/sha1.h"
 #include "base/strings/string_number_conversions.h"
+#include "gpu/command_buffer/common/activity_flags.h"
 #include "gpu/command_buffer/common/constants.h"
 #include "gpu/command_buffer/service/disk_cache_proto.pb.h"
 #include "gpu/command_buffer/service/gl_utils.h"
@@ -263,10 +264,14 @@ ProgramCache::ProgramLoadResult MemoryProgramCache::LoadLinkedProgram(
     return PROGRAM_LOAD_FAILURE;
   }
   const scoped_refptr<ProgramCacheValue> value = found->second;
+  GpuProcessActivityFlags::GetInstance()->SetFlag(
+      ActivityFlagsBase::FLAG_LOADING_PROGRAM_BINARY);
   glProgramBinary(program,
                   value->format(),
                   static_cast<const GLvoid*>(value->data()),
                   value->length());
+  GpuProcessActivityFlags::GetInstance()->UnsetFlag(
+      ActivityFlagsBase::FLAG_LOADING_PROGRAM_BINARY);
   GLint success = 0;
   glGetProgramiv(program, GL_LINK_STATUS, &success);
   if (success == GL_FALSE) {