chrome/browser/ui/webui/memory_internals/memory_internals_handler.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_WEBUI_MEMORY_INTERNALS_MEMORY_INTERNALS_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_MEMORY_INTERNALS_MEMORY_INTERNALS_HANDLER_H_
   7
   8 #include <string>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "content/public/browser/web_ui_message_handler.h"
  13
  14 namespace base {
  15 class ListValue;
  16 }
  17
  18 class MemoryInternalsProxy;
  19
  20 // This class handles messages to and from MemoryInternalsUI.
  21 // It does all its work on the IO thread through the proxy below.
  22 class MemoryInternalsHandler : public content::WebUIMessageHandler {
  23  public:
  24   MemoryInternalsHandler();
  25   ~MemoryInternalsHandler() override;
  26
  27   void RegisterMessages() override;
  28
  29   // JavaScript message handlers.
  30   void OnJSUpdate(const base::ListValue* list);
  31
  32   // MemoryInternals message handlers.
  33   void OnUpdate(const base::string16& update);
  34
  35  private:
  36   scoped_refptr<MemoryInternalsProxy> proxy_;
  37
  38   DISALLOW_COPY_AND_ASSIGN(MemoryInternalsHandler);
  39 };
  40
  41 #endif  // CHROME_BROWSER_UI_WEBUI_MEMORY_INTERNALS_MEMORY_INTERNALS_HANDLER_H_