mac: Remove implicit conversion from ImageSkia to SkBitmap.

skia/ext/skia_utils_mac.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.
 
 #ifndef SKIA_EXT_SKIA_UTILS_MAC_H_
 #define SKIA_EXT_SKIA_UTILS_MAC_H_
 
 #include <ApplicationServices/ApplicationServices.h>
 #include <vector>
 
@@ skipping 68 matching lines @@
 SK_API SkBitmap NSImageToSkBitmap(NSImage* image, NSSize size, bool is_opaque);
 
 // Draws an NSImageRep with a given size into a SkBitmap.
 SK_API SkBitmap NSImageRepToSkBitmap(
     NSImageRep* image, NSSize size, bool is_opaque);
 
 // Given an SkBitmap, return an autoreleased NSBitmapImageRep in the generic
 // color space.
 SK_API NSBitmapImageRep* SkBitmapToNSBitmapImageRep(const SkBitmap& image);
 
+SK_API NSBitmapImageRep* SkBitmapToNSBitmapImageRepWithColorSpace(
+    const SkBitmap& skiaBitmap,
+    CGColorSpaceRef colorSpace);
+
 // Given an SkBitmap and a color space, return an autoreleased NSImage.
 SK_API NSImage* SkBitmapToNSImageWithColorSpace(const SkBitmap& icon,
                                                 CGColorSpaceRef colorSpace);
 
 // Given an SkBitmap, return an autoreleased NSImage in the generic color space.
 // DEPRECATED, use SkBitmapToNSImageWithColorSpace() instead.
 // TODO(thakis): Remove this -- http://crbug.com/69432
 SK_API NSImage* SkBitmapToNSImage(const SkBitmap& icon);
 
 // Converts a SkCanvas temporarily to a CGContext
 class SK_API SkiaBitLocker {
  public:
   explicit SkiaBitLocker(SkCanvas* canvas);
   ~SkiaBitLocker();
   CGContextRef cgContext();
 
  private:
   void releaseIfNeeded();
   SkCanvas* canvas_;
   CGContextRef cgContext_;
   SkBitmap bitmap_;
   bool useDeviceBits_;
 };
 
 
 }  // namespace gfx
 
 #endif  // SKIA_EXT_SKIA_UTILS_MAC_H_