mac: Move more 10.7 api stuff into sdk_forward_declarations.h

base/mac/sdk_forward_declarations.h

Index: base/mac/sdk_forward_declarations.h
diff --git a/base/mac/sdk_forward_declarations.h b/base/mac/sdk_forward_declarations.h
index 387400d43de55c53e746bf513f0d29a334e7a348..0b2e89761b3215366b972b3f91d067956af54b81 100644
--- a/base/mac/sdk_forward_declarations.h
+++ b/base/mac/sdk_forward_declarations.h
@@ -4,6 +4,9 @@
 
 // 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_
@@ -43,6 +46,15 @@ typedef NSUInteger NSEventSwipeTrackingOptions;
 - (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_