Teach SkyShell how to listen for VIEW intents of sky: urls.

sky/shell/ui/engine.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 SKY_SHELL_UI_ENGINE_H_
 #define SKY_SHELL_UI_ENGINE_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 35 matching lines @@
 
  private:
   // UIDelegate methods:
   void ConnectToViewportObserver(
       mojo::InterfaceRequest<ViewportObserver> request) override;
 
   // ViewportObserver:
   void OnViewportMetricsChanged(int width, int height,
                                 float device_pixel_ratio) override;
   void OnInputEvent(InputEventPtr event) override;
+  void LoadURL(const mojo::String& url) override;
 
   // WebViewClient methods:
   void initializeLayerTreeView() override;
   void scheduleVisualUpdate() override;
 
+  void UpdateWebViewSize();
+
   scoped_ptr<PlatformImpl> platform_impl_;
   scoped_ptr<Animator> animator_;
   blink::WebView* web_view_;
   float device_pixel_ratio_;
   gfx::Size physical_size_;
   mojo::Binding<ViewportObserver> viewport_observer_binding_;
 
   base::WeakPtrFactory<Engine> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Engine);
 };
 
 }  // namespace shell
 }  // namespace sky
 
 #endif  // SKY_SHELL_UI_ENGINE_H_