Make command-zero reset page scale in addition to zoom level

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 <map>
 #include <set>
 #include <string>
@@ skipping 303 matching lines @@
   RendererPreferences* GetMutableRendererPrefs() override;
   void Close() override;
   void SystemDragEnded() override;
   void UserGestureDone() override;
   void SetClosedByUserGesture(bool value) override;
   bool GetClosedByUserGesture() const override;
   void ViewSource() override;
   void ViewFrameSource(const GURL& url, const PageState& page_state) override;
   int GetMinimumZoomPercent() const override;
   int GetMaximumZoomPercent() const override;
+  void ResetPageScale() override;
   gfx::Size GetPreferredSize() const override;
   bool GotResponseToLockMouseRequest(bool allowed) override;
   bool HasOpener() const override;
   WebContents* GetOpener() const override;
   void DidChooseColorInColorChooser(SkColor color) override;
   void DidEndColorChooser() override;
   int DownloadImage(const GURL& url,
                     bool is_favicon,
                     uint32_t max_bitmap_size,
                     const ImageDownloadCallback& callback) override;
@@ skipping 933 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(FriendZone);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_