gpu: Move ShaderDiskCache into //gpu/ipc/host component.

content/browser/gpu/shader_cache_factory.cc

 // Copyright 2016 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 "content/browser/gpu/shader_cache_factory.h"
 
 #include "base/single_thread_task_runner.h"
-#include "content/browser/gpu/shader_disk_cache.h"
+#include "gpu/ipc/host/shader_disk_cache.h"
 
 namespace content {
 
 namespace {
 
-ShaderCacheFactory* factory_instance = nullptr;
+gpu::ShaderCacheFactory* factory_instance = nullptr;
 
 void CreateFactoryInstance(
     scoped_refptr<base::SingleThreadTaskRunner> cache_task_runner) {
   DCHECK(!factory_instance);
-  factory_instance = new ShaderCacheFactory(std::move(cache_task_runner));
+  factory_instance = new gpu::ShaderCacheFactory(std::move(cache_task_runner));
 }
 
 }  // namespace
 
 void InitShaderCacheFactorySingleton(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> cache_task_runner) {
   if (task_runner->BelongsToCurrentThread()) {
     CreateFactoryInstance(std::move(cache_task_runner));
   } else {
     task_runner->PostTask(FROM_HERE, base::Bind(&CreateFactoryInstance,
                                                 std::move(cache_task_runner)));
   }
 }
 
-ShaderCacheFactory* GetShaderCacheFactorySingleton() {
+gpu::ShaderCacheFactory* GetShaderCacheFactorySingleton() {
   DCHECK(!factory_instance || factory_instance->CalledOnValidThread());
   return factory_instance;
 }
 
 }  // namespace content