Disabled pinch zooming in non-browser Aura windows.

ui/keyboard/keyboard_controller_proxy.cc

 // Copyright (c) 2013 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.
 
 #include "ui/keyboard/keyboard_controller_proxy.h"
 
 #include "base/values.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 78 matching lines @@
     proxy_->set_resizing_from_contents(false);
   }
 
   // Overridden from content::WebContentsDelegate:
   virtual void RequestMediaAccessPermission(content::WebContents* web_contents,
       const content::MediaStreamRequest& request,
       const content::MediaResponseCallback& callback) OVERRIDE {
     proxy_->RequestAudioInput(web_contents, request, callback);
   }
 
-
   // Overridden from content::WebContentsObserver:
   virtual void WebContentsDestroyed(content::WebContents* contents) OVERRIDE {
     delete this;
   }
 
   keyboard::KeyboardControllerProxy* proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardContentsDelegate);
 };
 
@@ skipping 72 matching lines @@
     base::DictionaryValue input_context;
     input_context.SetString("type", TextInputTypeToString(type));
     webui->CallJavascriptFunction("OnTextInputBoxFocused", input_context);
   }
 }
 
 void KeyboardControllerProxy::SetupWebContents(content::WebContents* contents) {
 }
 
 }  // namespace keyboard