[blimp] Add support for having multiple tabs

blimp/engine/session/blimp_engine_session.h

 // Copyright 2015 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 BLIMP_ENGINE_SESSION_BLIMP_ENGINE_SESSION_H_
 #define BLIMP_ENGINE_SESSION_BLIMP_ENGINE_SESSION_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 54 matching lines @@
 namespace engine {
 
 class BlimpBrowserContext;
 class BlimpEngineConfig;
 class BlimpFocusClient;
 class BlimpScreen;
 class BlimpWindowTreeHost;
 class EngineNetworkComponents;
 class Tab;
 
-class BlimpEngineSession
-    : public BlimpMessageProcessor,
-      public content::WebContentsDelegate,
-      public ui::InputMethodObserver,
-      public EngineRenderWidgetFeature::RenderWidgetMessageDelegate {
+class BlimpEngineSession : public BlimpMessageProcessor,
+                           public content::WebContentsDelegate,
+                           public ui::InputMethodObserver {
  public:
   using GetPortCallback = base::Callback<void(uint16_t)>;
 
   BlimpEngineSession(std::unique_ptr<BlimpBrowserContext> browser_context,
                      net::NetLog* net_log,
                      BlimpEngineConfig* config,
                      SettingsManager* settings_manager);
   ~BlimpEngineSession() override;
 
   // Starts the network stack on the IO thread, and sets default placeholder
@@ skipping 27 matching lines @@
   // Returns true if a new tab is created, false otherwise.
   bool CreateTab(const int target_tab_id);
 
   // Closes an existing tab, indexed by |target_tab_id|.
   void CloseTab(const int target_tab_id);
 
   // Resizes screen to |size| in pixels, and updates its device pixel ratio to
   // |device_pixel_ratio|.
   void HandleResize(float device_pixel_ratio, const gfx::Size& size);
 
-  // RenderWidgetMessage handler methods.
-  // RenderWidgetMessageDelegate implementation.
-  void OnWebGestureEvent(
-      content::RenderWidgetHost* render_widget_host,
-      std::unique_ptr<blink::WebGestureEvent> event) override;
-  void OnCompositorMessageReceived(
-      content::RenderWidgetHost* render_widget_host,
-      const std::vector<uint8_t>& message) override;
-
   // content::WebContentsDelegate implementation.
   content::WebContents* OpenURLFromTab(
       content::WebContents* source,
       const content::OpenURLParams& params) override;
   void AddNewContents(content::WebContents* source,
                       content::WebContents* new_contents,
                       WindowOpenDisposition disposition,
                       const gfx::Rect& initial_rect,
                       bool user_gesture,
                       bool* was_blocked) override;
@@ skipping 86 matching lines @@
   // TODO(haibinlu): Support more than one tab (crbug/547231)
   std::unique_ptr<Tab> tab_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpEngineSession);
 };
 
 }  // namespace engine
 }  // namespace blimp
 
 #endif  // BLIMP_ENGINE_SESSION_BLIMP_ENGINE_SESSION_H_