Fix crash caused by concurrent access to framebuffer_combo_complete_map_.

gpu/command_buffer/tests/gl_manager.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/tests/gl_manager.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
 
@@ skipping 257 matching lines @@
   attrib_helper.depth_size = 16;
   attrib_helper.stencil_size = 8;
   attrib_helper.webgl_version = options.webgl_version;
   attrib_helper.Serialize(&attribs);
 
   DCHECK(!command_line || !context_group);
   if (!context_group) {
     scoped_refptr<gles2::FeatureInfo> feature_info;
     if (command_line)
       feature_info = new gles2::FeatureInfo(*command_line);
-    context_group =
-        new gles2::ContextGroup(mailbox_manager_.get(),
-                                NULL,
-                                new gpu::gles2::ShaderTranslatorCache,
-                                feature_info,
-                                NULL,
-                                NULL,
-                                options.bind_generates_resource);
+    context_group = new gles2::ContextGroup(
+        mailbox_manager_.get(), NULL, new gpu::gles2::ShaderTranslatorCache,
+        new gpu::gles2::FramebufferCompletenessCache, feature_info, NULL, NULL,
+        options.bind_generates_resource);
   }
 
   decoder_.reset(::gpu::gles2::GLES2Decoder::Create(context_group));
 
   command_buffer_.reset(new CommandBufferService(
       decoder_->GetContextGroup()->transfer_buffer_manager()));
   ASSERT_TRUE(command_buffer_->Initialize())
       << "could not create command buffer service";
 
   gpu_scheduler_.reset(new GpuScheduler(command_buffer_.get(),
@@ skipping 210 matching lines @@
 void GLManager::SetLock(base::Lock*) {
   NOTIMPLEMENTED();
 }
 
 bool GLManager::IsGpuChannelLost() {
   NOTIMPLEMENTED();
   return false;
 }
 
 }  // namespace gpu