<webview>: Implement fullscreen permission for html5 element.requestFullscreen()

extensions/browser/guest_view/guest_view_base.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 EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_BASE_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_BASE_H_
 
 #include <queue>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 106 matching lines @@
   // This gives the derived class an opportunity to perform some cleanup.
   virtual void GuestDestroyed() {}
 
   // This method is invoked when the guest RenderView is ready, e.g. because we
   // recreated it after a crash or after reattachment.
   //
   // This gives the derived class an opportunity to perform some initialization
   // work.
   virtual void GuestReady() {}
 
+  // This method is called when embedder WebContents's fullscreen is toggled.
+  //
+  // If the guest asked the embedder to enter fullscreen, the guest uses this
+  // signal to exit fullscreen state.
+  virtual void EmbedderFullscreenToggled(bool entered_fullscreen) {}
+
   // This method is invoked when the contents auto-resized to give the container
   // an opportunity to match it if it wishes.
   //
   // This gives the derived class an opportunity to inform its container element
   // or perform other actions.
   virtual void GuestSizeChangedDueToAutoSize(const gfx::Size& old_size,
                                              const gfx::Size& new_size) {}
 
   // This method queries whether autosize is supported for this particular view.
   // By default, autosize is not supported. Derived classes can override this
@@ skipping 203 matching lines @@
   void RunFileChooser(content::WebContents* web_contents,
                       const content::FileChooserParams& params) override;
   bool ShouldFocusPageAfterCrash() final;
   bool PreHandleGestureEvent(content::WebContents* source,
                              const blink::WebGestureEvent& event) override;
   void UpdatePreferredSize(content::WebContents* web_contents,
                            const gfx::Size& pref_size) final;
   void UpdateTargetURL(content::WebContents* source, const GURL& url) override;
 
  private:
-  class OwnerLifetimeObserver;
+  class OwnerContentsObserver;
 
   class OpenerLifetimeObserver;
 
   void DispatchEvent(Event* event, int instance_id);
 
   void SendQueuedEvents();
 
   void CompleteInit(scoped_ptr<base::DictionaryValue> create_params,
                     const WebContentsCreatedCallback& callback,
                     content::WebContents* guest_web_contents);
@@ skipping 46 matching lines @@
   base::WeakPtr<GuestViewBase> opener_;
 
   // The parameters associated with the element hosting this GuestView that
   // are passed in from JavaScript. This will typically be the view instance ID,
   // and element-specific parameters. These parameters are passed along to new
   // guests that are created from this guest.
   scoped_ptr<base::DictionaryValue> attach_params_;
 
   // This observer ensures that this guest self-destructs if the embedder goes
   // away.
-  scoped_ptr<OwnerLifetimeObserver> owner_lifetime_observer_;
+  scoped_ptr<OwnerContentsObserver> owner_contents_observer_;
 
   // This observer ensures that if the guest is unattached and its opener goes
   // away then this guest also self-destructs.
   scoped_ptr<OpenerLifetimeObserver> opener_lifetime_observer_;
 
   // The size of the guest content. Note: In autosize mode, the container
   // element may not match the size of the guest.
   gfx::Size guest_size_;
 
   // A pointer to the guest_host.
@@ skipping 20 matching lines @@
   // This is used to ensure pending tasks will not fire after this object is
   // destroyed.
   base::WeakPtrFactory<GuestViewBase> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GuestViewBase);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_BASE_H_