Fix rubber band gutter drawing for Skia on Chromium Mac

https://bugs.webkit.org/show_bug.cgi?id=66478

Reviewed by James Robinson.

No new tests. The Skia on Chromium Mac platform has
not been enabled.

This break was detected at compile time; there is no
behavior change.

* platform/chromium/ScrollbarThemeChromiumMac.mm:
(WebCore::ScrollbarThemeChromiumMac::ScrollbarThemeChromiumMac):
Convert the CGImage into an SkBitmap if Skia is present.


git-svn-id: svn://svn.chromium.org/blink/trunk@93343 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/WebCore/ChangeLog

+2011-08-18  Cary Clark  <caryclark@google.com>
+
+        Fix rubber band gutter drawing for Skia on Chromium Mac
+        https://bugs.webkit.org/show_bug.cgi?id=66478
+
+        Reviewed by James Robinson.
+
+        No new tests. The Skia on Chromium Mac platform has
+        not been enabled.
+
+        This break was detected at compile time; there is no
+        behavior change.
+
+        * platform/chromium/ScrollbarThemeChromiumMac.mm:
+        (WebCore::ScrollbarThemeChromiumMac::ScrollbarThemeChromiumMac):
+        Convert the CGImage into an SkBitmap if Skia is present.
+
 2011-08-18  Julien Chaffraix  <jchaffraix@webkit.org>
 
         Implement a faster path for painting tables with overflowing cells

third_party/WebKit/Source/WebCore/platform/chromium/ScrollbarThemeChromiumMac.mm

@@ -42,6 +42,7 @@
 #include <wtf/UnusedParam.h>
 
 #if USE(SKIA)
+#include "BitmapImageSingleFrameSkia.h"
 #include "PlatformContextSkia.h"
 #include "skia/ext/skia_utils_mac.h"
 #endif
@@ -203,7 +204,12 @@ ScrollbarThemeChromiumMac::ScrollbarThemeChromiumMac()
                 if (tiffData) {
                     CGImageSourceRef imageSource = CGImageSourceCreateWithData((CFDataRef)tiffData, NULL);
                     CGImageRef cgImage = CGImageSourceCreateImageAtIndex(imageSource, 0, NULL);
+#if USE(SKIA)
+                    SkBitmap bitmap = gfx::CGImageToSkBitmap(cgImage);
+                    RefPtr<Image> patternImage = BitmapImageSingleFrameSkia::create(bitmap, false);
+#else
                     RefPtr<Image> patternImage = BitmapImage::create(cgImage);
+#endif                    
                     m_overhangPattern = Pattern::create(patternImage, true, true);
                 }
             }