Fix crash caused by concurrent access to framebuffer_combo_complete_map_.

gpu/command_buffer/service/texture_manager_unittest.cc

Index: gpu/command_buffer/service/texture_manager_unittest.cc
diff --git a/gpu/command_buffer/service/texture_manager_unittest.cc b/gpu/command_buffer/service/texture_manager_unittest.cc
index 6cadd978df8c1ed05b4b2d95badeb728acdbd8a9..231fc04224477fa9f6998bea1e2927a21a404d6a 100644
--- a/gpu/command_buffer/service/texture_manager_unittest.cc
+++ b/gpu/command_buffer/service/texture_manager_unittest.cc
@@ -1923,10 +1923,10 @@ TEST_F(SharedTextureTest, TextureSafetyAccounting) {
 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);