Make options zoom isolated, match embedder zoom on navigation.

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 309 matching lines @@
   // Note that a size can consist of a fractional number of logical pixels
   // (hence the return value is represented as a double), but will always
   // consist of an integral number of physical pixels (hence |physical_pixels|
   // is represented as an int).
   double PhysicalPixelsToLogicalPixels(int physical_pixels);
 
   // WebContentsObserver implementation.
   void DidStopLoading() final;
   void RenderViewReady() final;
   void WebContentsDestroyed() final;
+  void DidNavigateMainFrame(
+      const content::LoadCommittedDetails& details,
+      const content::FrameNavigateParams& params) override;
 
   // WebContentsDelegate implementation.
   void ActivateContents(content::WebContents* contents) final;
   void DeactivateContents(content::WebContents* contents) final;
   void ContentsMouseEvent(content::WebContents* source,
                           const gfx::Point& location,
                           bool motion) override;
   void ContentsZoomChange(bool zoom_in) override;
   void HandleKeyboardEvent(
       content::WebContents* source,
       const content::NativeWebKeyboardEvent& event) override;
   void LoadingStateChanged(content::WebContents* source,
                            bool to_different_document) final;
   content::ColorChooser* OpenColorChooser(
       content::WebContents* web_contents,
       SkColor color,
       const std::vector<content::ColorSuggestion>& suggestions) override;
   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;
 
+  void SetGuestZoomLevelToMatchEmbedder();
+
  private:
   class OwnerContentsObserver;
 
   class OpenerLifetimeObserver;
 
   void DispatchEvent(Event* event, int instance_id);
 
   void SendQueuedEvents();
 
   void CompleteInit(scoped_ptr<base::DictionaryValue> create_params,
@@ skipping 89 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_