Clear shader disk cache after glProgramBinary failure.

gpu/command_buffer/service/memory_program_cache.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/memory_program_cache.h"
 
 #include <stddef.h>
 
 #include "base/base64.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #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"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 #include "gpu/command_buffer/service/shader_manager.h"
 #include "ui/gl/gl_bindings.h"
 
 namespace gpu {
 namespace gles2 {
@@ skipping 231 matching lines @@
                      transform_feedback_varyings,
                      transform_feedback_buffer_mode,
                      sha);
   const std::string sha_string(sha, kHashLength);
 
   ProgramMRUCache::iterator found = store_.Get(sha_string);
   if (found == store_.end()) {
     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) {
     return PROGRAM_LOAD_FAILURE;
   }
   shader_a->set_attrib_map(value->attrib_map_0());
   shader_a->set_uniform_map(value->uniform_map_0());
   shader_a->set_varying_map(value->varying_map_0());
   shader_a->set_output_variable_list(value->output_variable_list_0());
   shader_a->set_interface_block_map(value->interface_block_map_0());
@@ skipping 224 matching lines @@
   program_cache_->LinkedProgramCacheSuccess(program_hash);
 }
 
 MemoryProgramCache::ProgramCacheValue::~ProgramCacheValue() {
   program_cache_->curr_size_bytes_ -= length_;
   program_cache_->Evict(program_hash_);
 }
 
 }  // namespace gles2
 }  // namespace gpu