GuestView: Move Disable Drag and Drop Out to Chrome

chrome/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 CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_BASE_H_
 #define CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_BASE_H_
 
 #include <queue>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 58 matching lines @@
                                              std::string* partition_domain,
                                              std::string* partition_name,
                                              bool* in_memory);
 
   // By default, JavaScript and images are enabled in guest content.
   static void GetDefaultContentSettingRules(RendererContentSettingRules* rules,
                                             bool incognito);
 
   virtual const char* GetViewType() const = 0;
 
+  // This method can be overriden by subclasses. This method is called when
+  // the initial set of frames within the page have completed loading.
+  virtual void DidStopLoading() {}
+
   // This method can be overridden by subclasses. It indicates that this guest's
   // embedder has been destroyed and the guest will be destroyed shortly. This
   // method gives derived classes the opportunity to perform some cleanup.
   virtual void EmbedderDestroyed() {}
 
+  // This method queries whether drag-and-drop is enabled for this particular
+  // view. By default, drag-and-drop is disabled. Derived classes can override
+  // this behavior to enable drag-and-drop.
+  virtual bool IsDragAndDropEnabled() const;
+
   bool IsViewType(const char* const view_type) const {
     return !strcmp(GetViewType(), view_type);
   }
 
   base::WeakPtr<GuestViewBase> AsWeakPtr();
 
   virtual void Attach(content::WebContents* embedder_web_contents,
                       const base::DictionaryValue& args);
 
   content::WebContents* embedder_web_contents() const {
@@ skipping 34 matching lines @@
   // Returns the embedder's process ID.
   int embedder_render_process_id() const { return embedder_render_process_id_; }
 
   GuestViewBase* GetOpener() const {
     return opener_.get();
   }
 
   void SetOpener(GuestViewBase* opener);
 
   // WebContentsObserver implementation.
+  virtual void DidStopLoading(
+      content::RenderViewHost* render_view_host) OVERRIDE FINAL;
   virtual void WebContentsDestroyed() OVERRIDE;
 
   // WebContentsDelegate implementation.
   virtual bool ShouldFocusPageAfterCrash() OVERRIDE;
   virtual bool PreHandleGestureEvent(
       content::WebContents* source,
       const blink::WebGestureEvent& event) OVERRIDE;
 
   // BrowserPluginGuestDelegate implementation.
   virtual void Destroy() OVERRIDE;
@@ skipping 42 matching lines @@
   scoped_ptr<EmbedderWebContentsObserver> embedder_web_contents_observer_;
 
   // 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);
 };
 
 #endif  // CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_BASE_H_