Remove all the OS X 10.6 SDK forward declarations.

remoting/host/capturer_mac.mm

 // 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.
 
 #include "remoting/host/capturer.h"
 
 #include <ApplicationServices/ApplicationServices.h>
 #include <Cocoa/Cocoa.h>
 #include <dlfcn.h>
 #include <IOKit/pwr_mgt/IOPMLib.h>
 #include <OpenGL/CGLMacro.h>
 #include <OpenGL/OpenGL.h>
 #include <stddef.h>
 
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/time.h"
 #include "remoting/base/capture_data.h"
 #include "remoting/base/util.h"
 #include "remoting/host/capturer_helper.h"
 #include "remoting/proto/control.pb.h"
 
-#if !defined(MAC_OS_X_VERSION_10_6) || \
-    MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_6
-
-@interface NSCursor (SnowLeopardSDKDeclarations)
-+ (NSCursor*)currentSystemCursor;
-@end
-
-@interface NSImage (SnowLeopardSDKDeclarations)
-- (CGImageRef)CGImageForProposedRect:(NSRect*)proposedDestRect
-                             context:(NSGraphicsContext*)referenceContext
-                               hints:(NSDictionary*)hints;
-@end
-
-#endif  // MAC_OS_X_VERSION_10_6
-
 namespace remoting {
 
 namespace {
 
 SkIRect CGRectToSkIRect(const CGRect& rect) {
   SkIRect sk_rect = {
     SkScalarRound(rect.origin.x),
     SkScalarRound(rect.origin.y),
     SkScalarRound(rect.origin.x + rect.size.width),
     SkScalarRound(rect.origin.y + rect.size.height)
@@ skipping 732 matching lines @@
 Capturer* Capturer::Create() {
   CapturerMac* capturer = new CapturerMac();
   if (!capturer->Init()) {
     delete capturer;
     capturer = NULL;
   }
   return capturer;
 }
 
 }  // namespace remoting