Disabled pinch zooming in non-browser Aura windows.

chrome/browser/ui/browser.cc

 // Copyright 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 "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 166 matching lines @@
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest_handlers/background_info.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 #include "grit/theme_resources.h"
 #include "net/base/net_util.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/url_request/url_request_context.h"
+#include "third_party/WebKit/public/web/WebInputEvent.h"

[jam, 2014/01/23 01:34:47]

this isn't needed?

 #include "third_party/WebKit/public/web/WebWindowFeatures.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/point.h"
 #include "ui/shell_dialogs/selected_file_info.h"
 
 #if defined(OS_WIN)
 #include "base/win/metro.h"
 #include "chrome/browser/ssl/ssl_error_info.h"
 #include "chrome/browser/task_manager/task_manager.h"
@@ skipping 2095 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }