[DevTools] Emulation domain implementation (browser side).

content/browser/devtools/protocol/page_handler.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_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 12 matching lines @@
 namespace devtools {
 namespace page {
 
 class ColorPicker;
 class FrameRecorder;
 
 class PageHandler {
  public:
   typedef DevToolsProtocolClient::Response Response;
 
+  class ScreencastListener {
+   public:
+    virtual ~ScreencastListener() { }
+    virtual void ScreencastEnabledChanged() = 0;
+  };
+
   PageHandler();
   virtual ~PageHandler();
 
   void SetRenderViewHost(RenderViewHostImpl* host);
   void SetClient(scoped_ptr<Client> client);
   void Detached();
   void OnSwapCompositorFrame(const cc::CompositorFrameMetadata& frame_metadata);
   void OnVisibilityChanged(bool visible);
   void DidAttachInterstitialPage();
   void DidDetachInterstitialPage();
+  void SetScreencastListener(ScreencastListener* listener);
+  bool screencast_enabled() const { return enabled_ && screencast_enabled_; }
 
   Response Enable();
   Response Disable();
 
   Response Reload(const bool* ignoreCache,
                   const std::string* script_to_evaluate_on_load,
                   const std::string* script_preprocessor = NULL);
 
   Response Navigate(const std::string& url, FrameId* frame_id);
 
@@ skipping 87 matching lines @@
   cc::CompositorFrameMetadata last_compositor_frame_metadata_;
   int screencast_frame_sent_;
   int screencast_frame_acked_;
   bool processing_screencast_frame_;
 
   scoped_ptr<ColorPicker> color_picker_;
   scoped_ptr<FrameRecorder> frame_recorder_;
 
   RenderViewHostImpl* host_;
   scoped_ptr<Client> client_;
+  ScreencastListener* screencast_listener_;
   base::WeakPtrFactory<PageHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PageHandler);
 };
 
 }  // namespace page
 }  // namespace devtools
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_