Implement SVG masking with slimming paint

Source/core/paint/CompositingRecorder.h

Index: Source/core/paint/CompositingRecorder.h
diff --git a/Source/core/paint/CompositingRecorder.h b/Source/core/paint/CompositingRecorder.h
index 99eb5fb8abef90b88cd34a546d0428b2bcb92d6e..852dc94c4c0b471aa650bdeae43080fdc378c5b5 100644
--- a/Source/core/paint/CompositingRecorder.h
+++ b/Source/core/paint/CompositingRecorder.h
@@ -5,6 +5,7 @@
 #ifndef CompositingRecorder_h
 #define CompositingRecorder_h
 
+#include "platform/geometry/FloatRect.h"
 #include "platform/graphics/GraphicsTypes.h"
 #include "platform/graphics/paint/DisplayItem.h"
 #include "public/platform/WebBlendMode.h"
@@ -16,7 +17,7 @@ class LayoutObject;
 
 class CompositingRecorder {
 public:
-    explicit CompositingRecorder(GraphicsContext*, DisplayItemClient, const CompositeOperator, const WebBlendMode&, const float);
+    explicit CompositingRecorder(GraphicsContext*, DisplayItemClient, const SkXfermode::Mode, const float, const FloatRect* = 0, ColorFilter = ColorFilterNone);

[ajuma, 2015/02/23 18:19:28]

Though it's not part of this change, giving the float argument a name would make
this more readable.

[jbroman, 2015/02/23 18:20:44]

Drive-by: IMHO, the FloatRect* should also have a name.

[pdr., 2015/02/23 22:00:55]

Done

On 2015/02/23 at 18:20:44, jbroman wrote:
Done

 
     ~CompositingRecorder();