Disabled pinch zooming in non-browser Aura windows.

content/public/browser/web_contents_delegate.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/public/browser/web_contents_delegate.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "content/public/browser/render_view_host.h"
@@ skipping 90 matching lines @@
                                        PAGE_TRANSITION_LINK, false));
 }
 
 bool WebContentsDelegate::PreHandleKeyboardEvent(
     WebContents* source,
     const NativeWebKeyboardEvent& event,
     bool* is_keyboard_shortcut) {
   return false;
 }
 
+bool WebContentsDelegate::PreHandleGestureEvent(
+    WebContents* source,
+    const blink::WebGestureEvent& event) {
+  return false;
+}
+
 bool WebContentsDelegate::CanDragEnter(
     WebContents* source,
     const DropData& data,
     blink::WebDragOperationsMask operations_allowed) {
   return true;
 }
 
 bool WebContentsDelegate::OnGoToEntryOffset(int offset) {
   return true;
 }
@@ skipping 61 matching lines @@
   DCHECK(attached_contents_.find(web_contents) != attached_contents_.end());
   attached_contents_.erase(web_contents);
 }
 
 gfx::Size WebContentsDelegate::GetSizeForNewRenderView(
     const WebContents* web_contents) const {
   return gfx::Size();
 }
 
 }  // namespace content