Disabled pinch zooming in non-browser Aura windows.

content/browser/browser_plugin/browser_plugin_guest.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.
 
 // A BrowserPluginGuest is the browser side of a browser <--> embedder
 // renderer channel. A BrowserPlugin (a WebPlugin) is on the embedder
 // renderer side of browser <--> embedder renderer communication.
 //
 // BrowserPluginGuest lives on the UI thread of the browser process. Any
 // messages about the guest render process that the embedder might be interested
@@ skipping 200 matching lines @@
                                   WebContents* new_contents) OVERRIDE;
   virtual void RendererUnresponsive(WebContents* source) OVERRIDE;
   virtual void RendererResponsive(WebContents* source) OVERRIDE;
   virtual void RunFileChooser(WebContents* web_contents,
                               const FileChooserParams& params) OVERRIDE;
   virtual bool ShouldFocusPageAfterCrash() OVERRIDE;
   virtual void RequestMediaAccessPermission(
       WebContents* web_contents,
       const MediaStreamRequest& request,
       const MediaResponseCallback& callback) OVERRIDE;
+  virtual bool PreHandleGestureEvent(
+      content::WebContents* source,
+      const blink::WebGestureEvent& event) OVERRIDE;
 
   // JavaScriptDialogManager implementation.
   virtual void RunJavaScriptDialog(
       WebContents* web_contents,
       const GURL& origin_url,
       const std::string& accept_lang,
       JavaScriptMessageType javascript_message_type,
       const base::string16& message_text,
       const base::string16& default_prompt_text,
       const DialogClosedCallback& callback,
@@ skipping 369 matching lines @@
   // Weak pointer used to ask GeolocationPermissionContext about geolocation
   // permission.
   base::WeakPtrFactory<BrowserPluginGuest> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginGuest);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_