mac: Move more 10.7 api stuff into sdk_forward_declarations.h

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).
 
 #ifndef BASE_MAC_SDK_FORWARD_DECLARATIONS_H_
 #define BASE_MAC_SDK_FORWARD_DECLARATIONS_H_
 

[Mark Mentovai, 2013/06/06 13:49:57]

I guess this should #import <AppKit/AppKit.h> for IWYU purposes because it does
use a lot of AppKit and Foundation types.

[Nico, 2013/06/10 16:54:39]

Done.

[Nico, 2013/06/10 16:54:39]

Done.

 #if !defined(MAC_OS_X_VERSION_10_7) || \
     MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7
 enum {
   NSEventPhaseNone        = 0, // event not associated with a phase.
   NSEventPhaseBegan       = 0x1 << 0,
   NSEventPhaseStationary  = 0x1 << 1,
   NSEventPhaseChanged     = 0x1 << 2,
   NSEventPhaseEnded       = 0x1 << 3,
   NSEventPhaseCancelled   = 0x1 << 4,
 };
@@ skipping 15 matching lines @@
           dampenAmountThresholdMin:(CGFloat)minDampenThreshold
                                max:(CGFloat)maxDampenThreshold
                       usingHandler:(void (^)(CGFloat gestureAmount,
                                              NSEventPhase phase,
                                              BOOL isComplete,
                                              BOOL *stop))trackingHandler;
 
 - (BOOL)isDirectionInvertedFromDevice;
 
 @end
+
+@interface NSScreen (LionAPI)

[Mark Mentovai, 2013/06/06 13:49:57]

The category above is named LionSDK and your two new ones are named LionAPI. I
don’t care what you call it, but it’d be nice to be consistent.

[Nico, 2013/06/10 16:54:39]

Done.

+- (CGFloat)backingScaleFactor;
+- (NSRect)convertRectToBacking:(NSRect)aRect;
+@end
+
+@interface NSWindow (LionAPI)
+- (CGFloat)backingScaleFactor;
+@end
 #endif  // MAC_OS_X_VERSION_10_7
 
 #endif  // BASE_MAC_SDK_FORWARD_DECLARATIONS_H_