Update from https://crrev.com/312398

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 87 matching lines @@
 - (CGFloat)backingScaleFactor;
 - (NSRect)convertRectToBacking:(NSRect)aRect;
 @end
 
 @interface NSWindow (LionSDK)
 - (CGFloat)backingScaleFactor;
 - (NSWindowAnimationBehavior)animationBehavior;
 - (void)setAnimationBehavior:(NSWindowAnimationBehavior)newAnimationBehavior;
 - (void)toggleFullScreen:(id)sender;
 - (void)setRestorable:(BOOL)flag;
+- (NSRect)convertRectFromScreen:(NSRect)aRect;
 @end
 
 @interface NSCursor (LionSDKDeclarations)
 + (NSCursor*)IBeamCursorForVerticalLayout;
 @end
 
 @interface NSAnimationContext (LionSDK)
 + (void)runAnimationGroup:(void (^)(NSAnimationContext *context))changes
         completionHandler:(void (^)(void))completionHandler;
 @property(copy) void(^completionHandler)(void);
@@ skipping 222 matching lines @@
 
 @end
 
 BASE_EXPORT extern "C" NSString* const NSUserActivityTypeBrowsingWeb;
 
 BASE_EXPORT extern "C" NSString* const NSAppearanceNameVibrantDark;
 
 #endif  // MAC_OS_X_VERSION_10_10
 
 #endif  // BASE_MAC_SDK_FORWARD_DECLARATIONS_H_