Disabled pinch zooming in non-browser Aura windows.

content/browser/browser_plugin/browser_plugin_guest.cc

 // 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.
 
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <algorithm>
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
@@ skipping 1680 matching lines @@
   base::DictionaryValue request_info;
   request_info.Set(
       browser_plugin::kURL,
       base::Value::CreateStringValue(request.security_origin.spec()));
 
   RequestPermission(BROWSER_PLUGIN_PERMISSION_TYPE_MEDIA,
                     new MediaRequest(request, callback, this),
                     request_info);
 }
 
+bool BrowserPluginGuest::PreHandleGestureEvent(
+    WebContents* source, const blink::WebGestureEvent& event) {
+  return event.type == blink::WebGestureEvent::GesturePinchBegin ||
+      event.type == blink::WebGestureEvent::GesturePinchUpdate ||
+      event.type == blink::WebGestureEvent::GesturePinchEnd;
+}
+
 void BrowserPluginGuest::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,
     bool* did_suppress_message) {
   base::DictionaryValue request_info;
@@ skipping 140 matching lines @@
   request_info.Set(browser_plugin::kRequestMethod,
                    base::Value::CreateStringValue(request_method));
   request_info.Set(browser_plugin::kURL, base::Value::CreateStringValue(url));
 
   RequestPermission(BROWSER_PLUGIN_PERMISSION_TYPE_DOWNLOAD,
                     new DownloadRequest(callback),
                     request_info);
 }
 
 }  // namespace content