base: Remove DiscardableMemory::CreateLockedMemory.

content/child/web_discardable_memory_impl.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_CHILD_WEB_DISCARDABLE_MEMORY_IMPL_H_
 #define CONTENT_CHILD_WEB_DISCARDABLE_MEMORY_IMPL_H_
 
 #include "base/basictypes.h"
-#include "base/memory/discardable_memory.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/WebKit/public/platform/WebDiscardableMemory.h"
 
-namespace blink {
-class WebDiscardableMemory;
+namespace base {
+class DiscardableMemory;
 }
 
 namespace content {
 
 // Implementation of WebDiscardableMemory that is responsible for allocating
 // discardable memory.
 class WebDiscardableMemoryImpl : public blink::WebDiscardableMemory {
  public:
   virtual ~WebDiscardableMemoryImpl();
 
   static scoped_ptr<WebDiscardableMemoryImpl> CreateLockedMemory(size_t size);
 
   // blink::WebDiscardableMemory:
   virtual bool lock();
   virtual void unlock();
   virtual void* data();
 
  private:
   WebDiscardableMemoryImpl(scoped_ptr<base::DiscardableMemory> memory);
 
   scoped_ptr<base::DiscardableMemory> discardable_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDiscardableMemoryImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEB_DISCARDABLE_MEMORY_IMPL_H_