mac: Only let two-finger-scrolling trigger history if web doesn't swallow gesture

chrome/browser/ui/cocoa/gesture_utils.h

Index: chrome/browser/ui/cocoa/gesture_utils.h
diff --git a/chrome/browser/ui/cocoa/gesture_utils.h b/chrome/browser/ui/cocoa/gesture_utils.h
deleted file mode 100644
index 83c630c8fc39a5cbf97fe5e0094228b81a089472..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/cocoa/gesture_utils.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011 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.
-
-#ifndef CHROME_BROWSER_UI_COCOA_GESTURE_UTILS_H_
-#define CHROME_BROWSER_UI_COCOA_GESTURE_UTILS_H_
-
-#include <Foundation/Foundation.h>
-
-namespace gesture_utils {
-
-// On Lion, Apple introduced a new gesture for navigating pages using two-finger
-// gestures. Returns YES if two-finger gestures should be recognized.
-BOOL RecognizeTwoFingerGestures();
-
-// On Lion, returns YES if the scroll direction is "natural"/inverted. All other
-// OSes will return NO.
-BOOL IsScrollDirectionInverted();
-
-}  // namespace gesture_utils
-
-#endif  // CHROME_BROWSER_UI_COCOA_GESTURE_UTILS_H_