Rewrite clipboard write IPC handling to be easier to understand.

content/renderer/renderer_blink_platform_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/id_map.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 24 matching lines @@
 class WebGraphicsContext3DProvider;
 }
 
 namespace content {
 class BatteryStatusDispatcher;
 class DeviceLightEventPump;
 class DeviceMotionEventPump;
 class DeviceOrientationEventPump;
 class PlatformEventObserverBase;
 class QuotaMessageFilter;
-class RendererClipboardClient;
+class RendererClipboardDelegate;
 class RendererScheduler;
 class RenderView;
 class ThreadSafeSender;
 class WebBluetoothImpl;
 class WebClipboardImpl;
 class WebDatabaseObserverImpl;
 class WebFileSystemImpl;
 class WebSchedulerImpl;
 
 class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
@@ skipping 143 matching lines @@
   // it.
   static PlatformEventObserverBase* CreatePlatformEventObserverFromType(
       blink::WebPlatformEventType type);
 
   // Use the data previously set via SetMockDevice...DataForTesting() and send
   // them to the registered listener.
   void SendFakeDeviceEventDataForTesting(blink::WebPlatformEventType type);
 
   scoped_ptr<WebSchedulerImpl> web_scheduler_;
 
-  scoped_ptr<RendererClipboardClient> clipboard_client_;
+  scoped_ptr<RendererClipboardDelegate> clipboard_delegate_;
   scoped_ptr<WebClipboardImpl> clipboard_;
 
   class FileUtilities;
   scoped_ptr<FileUtilities> file_utilities_;
 
   class MimeRegistry;
   scoped_ptr<MimeRegistry> mime_registry_;
 
   class SandboxSupport;
   scoped_ptr<SandboxSupport> sandbox_support_;
@@ skipping 33 matching lines @@
   scoped_ptr<WebBluetoothImpl> bluetooth_;
 
   IDMap<PlatformEventObserverBase, IDMapOwnPointer> platform_event_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererBlinkPlatformImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_