Histograms - Support histograms for Plugins, GPU

content/public/renderer/render_thread.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_PUBLIC_RENDERER_RENDER_THREAD_H_
 #define CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_
 
 #include "base/basictypes.h"
 #include "base/shared_memory.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_channel_proxy.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 class MessageLoop;
 
+namespace base {
+class HistogramSender;
+}
+
 namespace IPC {
 class SyncChannel;
 class SyncMessageFilter;
 }
 
 namespace v8 {
 class Extension;
 }
 
 namespace content {
 
 class RenderProcessObserver;
 class ResourceDispatcherDelegate;
 
 class CONTENT_EXPORT RenderThread : public IPC::Message::Sender {
  public:
   // Returns the one render thread for this process.  Note that this can only
   // be accessed when running on the render thread itself.
   static RenderThread* Get();
 
   RenderThread();
   virtual ~RenderThread();
 
   virtual MessageLoop* GetMessageLoop() = 0;
   virtual IPC::SyncChannel* GetChannel() = 0;
   virtual std::string GetLocale() = 0;
   virtual IPC::SyncMessageFilter* GetSyncMessageFilter() = 0;
+  virtual base::HistogramSender* GetHistogramSender() = 0;
   virtual scoped_refptr<base::MessageLoopProxy> GetIOMessageLoopProxy() = 0;
 
   // Called to add or remove a listener for a particular message routing ID.
   // These methods normally get delegated to a MessageRouter.
   virtual void AddRoute(int32 routing_id, IPC::Channel::Listener* listener) = 0;
   virtual void RemoveRoute(int32 routing_id) = 0;
   virtual int GenerateRoutingID() = 0;
 
   // These map to IPC::ChannelProxy methods.
   virtual void AddFilter(IPC::ChannelProxy::MessageFilter* filter) = 0;
@@ skipping 49 matching lines @@
   virtual void PreCacheFont(const LOGFONT& log_font) = 0;
 
   // Release cached font.
   virtual void ReleaseCachedFonts() = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_