Disabled pinch zooming in non-browser Aura windows.

chrome/browser/chromeos/first_run/first_run_view.cc

 // Copyright 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 "chrome/browser/chromeos/first_run/first_run_view.h"
 
 #include "chrome/browser/extensions/extension_web_contents_observer.h"
 #include "chrome/browser/ui/webui/chromeos/first_run/first_run_ui.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
+#include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/views/controls/webview/webview.h"
 #include "url/gurl.h"
 
 namespace chromeos {
 
 FirstRunView::FirstRunView()
     : web_view_(NULL) {
 }
 
@@ skipping 30 matching lines @@
 content::WebContents* FirstRunView::GetWebContents() {
   return web_view_->web_contents();
 }
 
 bool FirstRunView::HandleContextMenu(
     const content::ContextMenuParams& params) {
   // Discards context menu.
   return true;
 }
 
+bool FirstRunView::PreHandleGestureEvent(
+    content::WebContents* source,
+    const blink::WebGestureEvent& event) {
+  // Disable pinch zooming.
+  return event.type == blink::WebGestureEvent::GesturePinchBegin ||
+      event.type == blink::WebGestureEvent::GesturePinchUpdate ||
+      event.type == blink::WebGestureEvent::GesturePinchEnd;
+}
+
 }  // namespace chromeos