Fix crash caused by concurrent access to framebuffer_combo_complete_map_.

gpu/command_buffer/service/texture_manager_unittest.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/texture_manager.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 1835 matching lines @@
   EXPECT_CALL(*gl_, DeleteTextures(1, _))
       .Times(1)
       .RetiresOnSaturation();
   texture_manager1_->RemoveTexture(10);
   texture_manager2_->RemoveTexture(20);
 }
 
 TEST_F(SharedTextureTest, FBOCompletenessCheck) {
   const GLenum kCompleteValue = GL_FRAMEBUFFER_COMPLETE;
   FramebufferManager framebuffer_manager1(
-      1, 1, ContextGroup::CONTEXT_TYPE_UNDEFINED);
+      1, 1, ContextGroup::CONTEXT_TYPE_UNDEFINED, NULL);
   texture_manager1_->set_framebuffer_manager(&framebuffer_manager1);
   FramebufferManager framebuffer_manager2(
-      1, 1, ContextGroup::CONTEXT_TYPE_UNDEFINED);
+      1, 1, ContextGroup::CONTEXT_TYPE_UNDEFINED, NULL);
   texture_manager2_->set_framebuffer_manager(&framebuffer_manager2);
 
   scoped_refptr<TextureRef> ref1 = texture_manager1_->CreateTexture(10, 10);
   framebuffer_manager1.CreateFramebuffer(10, 10);
   scoped_refptr<Framebuffer> framebuffer1 =
       framebuffer_manager1.GetFramebuffer(10);
   framebuffer1->AttachTexture(
       GL_COLOR_ATTACHMENT0, ref1.get(), GL_TEXTURE_2D, 0, 0);
   EXPECT_FALSE(framebuffer_manager1.IsComplete(framebuffer1.get()));
   EXPECT_NE(kCompleteValue, framebuffer1->IsPossiblyComplete());
@@ skipping 372 matching lines @@
   ExpectValid(GL_DEPTH_COMPONENT, GL_FLOAT, GL_DEPTH_COMPONENT32F);
   ExpectValid(GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_DEPTH24_STENCIL8);
   ExpectValid(GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV,
               GL_DEPTH32F_STENCIL8);
 
   ExpectInvalid(GL_RGB_INTEGER, GL_INT, GL_RGBA8);
 }
 
 }  // namespace gles2
 }  // namespace gpu