Chromium roll (https://codereview.chromium.org/976353002)

base/mac/sdk_forward_declarations.h

 // 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.
 
 // This file contains forward declarations for items in later SDKs than the
 // default one with which Chromium is built (currently 10.6).
 // If you call any function from this header, be sure to check at runtime for
 // respondsToSelector: before calling these functions (else your code will crash
 // on older OS X versions that chrome still supports).
 
@@ skipping 267 matching lines @@
 };
 
 @interface NSColor (MountainLionSDK)
 - (CGColorRef)CGColor;
 @end
 
 @interface NSUUID : NSObject
 - (NSString*)UUIDString;
 @end
 
+@interface NSControl (MountainLionSDK)
+@property BOOL allowsExpansionToolTips;
+@end
+
 #endif  // MAC_OS_X_VERSION_10_8
 
 
 #if !defined(MAC_OS_X_VERSION_10_9) || \
     MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_9
 
 // NSProgress is public API in 10.9, but a version of it exists and is usable
 // in 10.8.
 
 @interface NSProgress : NSObject
@@ skipping 106 matching lines @@
 
 BASE_EXPORT extern "C" NSString* const NSAppearanceNameVibrantDark;
 
 @interface CBUUID (YosemiteSDK)
 - (NSString*)UUIDString;
 @end
 
 #endif  // MAC_OS_X_VERSION_10_10
 
 #endif  // BASE_MAC_SDK_FORWARD_DECLARATIONS_H_