Removal of dependencies on PlatformDevice classes.

webkit/tools/test_shell/mac/webwidget_host.mm

Index: webkit/tools/test_shell/mac/webwidget_host.mm
===================================================================
--- webkit/tools/test_shell/mac/webwidget_host.mm	(revision 85945)
+++ webkit/tools/test_shell/mac/webwidget_host.mm	(working copy)
@@ -179,7 +179,7 @@
 
   // make sure webkit draws into our bitmap, not the window
   CGContextRef bitmap_context =
-      canvas_->getTopPlatformDevice().GetBitmapContext();
+      skia::GetBitmapContext(&canvas_->getTopDevice());
   [NSGraphicsContext setCurrentContext:
       [NSGraphicsContext graphicsContextWithGraphicsPort:bitmap_context
                                                  flipped:YES]];
@@ -221,8 +221,8 @@
     int bitmap_width = CGBitmapContextGetWidth(bitmap_context);
     CGRect bitmap_rect = { { 0, 0 },
                            { bitmap_width, bitmap_height } };
-    canvas_->getTopPlatformDevice().DrawToContext(
-        context, 0, client_rect.height() - bitmap_height, &bitmap_rect);
+    skia::DrawToNativeContext(canvas_.get(), context, 0,
+        client_rect.height() - bitmap_height, &bitmap_rect);
 
     [view_ unlockFocus];
   }