[Mac] Placate Clang's (pedantic) warning about CrTrackingArea's initializer.

chrome/browser/ui/cocoa/tracking_area.h

Index: chrome/browser/ui/cocoa/tracking_area.h
diff --git a/chrome/browser/ui/cocoa/tracking_area.h b/chrome/browser/ui/cocoa/tracking_area.h
index 26cb2eff778b4412fc1aa9f434f45b948ee5df88..c12c2fd39b2bba9fe0c881c7378a342c9ccf28f7 100644
--- a/chrome/browser/ui/cocoa/tracking_area.h
+++ b/chrome/browser/ui/cocoa/tracking_area.h
@@ -20,9 +20,16 @@
 
 // Designated initializer. Forwards all arguments to the superclass, but wraps
 // |owner| in a proxy object.
+//
+// The |proxiedOwner:| paramater has been renamed due to an incompatiblity with
+// the 10.5 SDK. Since that SDK version declares |-[NSTrackingArea's init...]|'s
+// return type to be |NSTrackingArea*| rather than |id|, a more generalized type
+// can't be returned by the subclass. Until the project switches to the 10.6 SDK
+// (where Apple changed the return type to |id|), this ugly hack must exist.
+// TODO(rsesek): Remove this when feasabile.

[Nico, 2011/02/15 13:57:51]

s/when feasible/when switch to 10.6 SDK is done/?

 - (id)initWithRect:(NSRect)rect
            options:(NSTrackingAreaOptions)options
-             owner:(id)owner
+      proxiedOwner:(id)owner  // 10.5 SDK hack. Remove at some point.
           userInfo:(NSDictionary*)userInfo;
 
 // Prevents any future messages from being delivered to the |owner|.