Don't show current RenderWidgetHostView while interstitial is showing.

content/browser/web_contents/web_contents_impl.h

 // Copyright (c) 2012 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_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <stdint.h>
 
 #include <functional>
@@ skipping 737 matching lines @@
   void UpdateRenderViewSizeForRenderManager() override;
   void CancelModalDialogsForRenderManager() override;
   void NotifySwappedFromRenderManager(RenderFrameHost* old_host,
                                       RenderFrameHost* new_host,
                                       bool is_main_frame) override;
   void NotifyMainFrameSwappedFromRenderManager(
       RenderViewHost* old_host,
       RenderViewHost* new_host) override;
   NavigationControllerImpl& GetControllerForRenderManager() override;
   NavigationEntry* GetLastCommittedNavigationEntryForRenderManager() override;
+  InterstitialPageImpl* GetInterstitialForRenderManager() override;
   bool FocusLocationBarByDefault() override;
   void SetFocusToLocationBar(bool select_all) override;
   bool IsHidden() override;
   int GetOuterDelegateFrameTreeNodeId() override;
   RenderWidgetHostImpl* GetFullscreenRenderWidgetHost() const override;
 
   // NotificationObserver ------------------------------------------------------
 
   void Observe(int type,
                const NotificationSource& source,
@@ skipping 584 matching lines @@
 
   // Upload progress, for displaying in the status bar.
   // Set to zero when there is no significant upload happening.
   uint64_t upload_size_;
   uint64_t upload_position_;
 
   // Tracks that this WebContents needs to unblock requests to the renderer.
   // See ResumeLoadingCreatedWebContents.
   bool is_resume_pending_;
 
+  // The interstitial page currently shown, if any. Not owned by this class: the
+  // InterstitialPage is self-owned and deletes itself asynchronously when
+  // hidden. Because it may outlive this WebContents, it enters a disabled state
+  // when hidden or preparing for destruction.
+  InterstitialPageImpl* interstitial_page_;
+
   // Data for current page -----------------------------------------------------
 
   // When a title cannot be taken from any entry, this title will be used.
   base::string16 page_title_when_no_navigation_entry_;
 
   // When a navigation occurs, we record its contents MIME type. It can be
   // used to check whether we can do something for some special contents.
   std::string contents_mime_type_;
 
   // The last reported character encoding, not canonicalized.
@@ skipping 269 matching lines @@
   // Adds/removes a callback called on creation of each new WebContents.
   static void AddCreatedCallbackForTesting(const CreatedCallback& callback);
   static void RemoveCreatedCallbackForTesting(const CreatedCallback& callback);
 
   DISALLOW_COPY_AND_ASSIGN(FriendWrapper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_