Remove SharedBitmapManager global in ui/compositor

ui/compositor/test/context_factories_for_test.cc

 // Copyright 2013 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 "ui/compositor/test/context_factories_for_test.h"
 
 #include "base/command_line.h"
 #include "base/sys_info.h"
-#include "cc/test/test_shared_bitmap_manager.h"
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/compositor_switches.h"
 #include "ui/compositor/test/in_process_context_factory.h"
 #include "ui/gl/gl_implementation.h"
 
 namespace {
 
 static ui::ContextFactory* g_implicit_factory = NULL;
 static gfx::DisableNullDrawGLBindings* g_disable_null_draw = NULL;
-static cc::TestSharedBitmapManager* g_shared_bitmap_manager = NULL;
 
 }  // namespace
 
 namespace ui {
 
 // static
 void InitializeContextFactoryForTests(bool enable_pixel_output) {
   DCHECK(!g_implicit_factory) <<
       "ContextFactory for tests already initialized.";
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switches::kEnablePixelOutputInTests))
     enable_pixel_output = true;
   if (enable_pixel_output)
     g_disable_null_draw = new gfx::DisableNullDrawGLBindings;
   g_implicit_factory = new InProcessContextFactory();
   ContextFactory::SetInstance(g_implicit_factory);
-  g_shared_bitmap_manager = new cc::TestSharedBitmapManager();
-  Compositor::SetSharedBitmapManager(g_shared_bitmap_manager);
 }
 
 void TerminateContextFactoryForTests() {
   ContextFactory::SetInstance(NULL);
   delete g_implicit_factory;
   g_implicit_factory = NULL;
-  Compositor::SetSharedBitmapManager(NULL);
-  delete g_shared_bitmap_manager;
-  g_shared_bitmap_manager = NULL;
   delete g_disable_null_draw;
   g_disable_null_draw = NULL;
 }
 
 }  // namespace ui