Map webkit glue when Mac build uses Skia.

In webkit_glue::DecodeImage(), the WebImage
is of type SkBitmap instead of CGImage, so
take the general case if USE_SKIA is defined.

The generic version of WebCursor defines
SetCustomData and ImageFromCustomData only if
WEBKIT_USING_SKIA is enabled, so disable the
corresponding routines in the Mac version.

In webkit_glue::WebThemeEngineImpl::paintScrollbarThumb(),
map the WebCanvas (i.e. SkCanvas) to a CGContext
to paint the scrollbar thumb, using the SkiaBitLocker
utility class.

SkiaBitLocker is described in
http://codereview.chromium.org/7031006/

These changes make no functional change to any
existing port, so have no new tests.

BUG=79463
TEST=none

Review URL: http://codereview.chromium.org/6840057

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86151 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 15 insertions, 3 deletions

diff --git a/webkit/glue/webcursor_mac.mm b/webkit/glue/webcursor_mac.mm
index da80efa..d3a6a20 100644
--- a/webkit/glue/webcursor_mac.mm
+++ b/webkit/glue/webcursor_mac.mm
@@ -334,6 +334,7 @@ void WebCursor::InitFromNSCursor(NSCursor* cursor) {
   InitFromCursorInfo(cursor_info);
 }
 
+#if !WEBKIT_USING_SKIA
 void WebCursor::SetCustomData(const WebImage& image) {
   if (image.isNull())
     return;
@@ -374,6 +375,7 @@ void WebCursor::ImageFromCustomData(WebImage* image) const {
       CreateCGImageFromCustomData(custom_data_, custom_size_));
   *image = cg_image.get();
 }
+#endif
 
 void WebCursor::InitPlatformData() {
   return;
diff --git a/webkit/glue/webkit_glue.cc b/webkit/glue/webkit_glue.cc
index 2749a46..1593c35 100644
--- a/webkit/glue/webkit_glue.cc
+++ b/webkit/glue/webkit_glue.cc
@@ -271,7 +271,7 @@ bool DecodeImage(const std::string& image_data, SkBitmap* image) {
   if (web_image.isNull())
     return false;
 
-#if defined(OS_MACOSX)
+#if defined(OS_MACOSX) && !defined(USE_SKIA)
   *image = gfx::CGImageToSkBitmap(web_image.getCGImageRef());
 #else
   *image = web_image.getSkBitmap();
diff --git a/webkit/glue/webthemeengine_impl_mac.cc b/webkit/glue/webthemeengine_impl_mac.cc
index cafc316..1c49cff 100644
--- a/webkit/glue/webthemeengine_impl_mac.cc
+++ b/webkit/glue/webthemeengine_impl_mac.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -9,6 +9,10 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCanvas.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRect.h"
 
+#if WEBKIT_USING_SKIA
+#include "skia/ext/skia_utils_mac.h"
+#endif
+
 using WebKit::WebCanvas;
 using WebKit::WebRect;
 using WebKit::WebThemeEngine;
@@ -52,7 +56,13 @@ void WebThemeEngineImpl::paintScrollbarThumb(
   trackInfo.trackInfo.scrollbar.pressState =
       state == WebThemeEngine::StatePressed ? kThemeThumbPressed : 0;
   trackInfo.attributes |= (kThemeTrackShowThumb | kThemeTrackHideTrack);
-  HIThemeDrawTrack(&trackInfo, 0, canvas, kHIThemeOrientationNormal);
+#if WEBKIT_USING_SKIA
+  gfx::SkiaBitLocker bitLocker(canvas);
+  CGContextRef cgContext = bitLocker.cgContext();
+#else
+  CGContextRef cgContext = canvas;
+#endif
+  HIThemeDrawTrack(&trackInfo, 0, cgContext, kHIThemeOrientationNormal);
 }
 
 }  // namespace webkit_glue