Refactor read and write buffers.

src/effects/SkBlurDrawLooper.cpp

Index: src/effects/SkBlurDrawLooper.cpp
diff --git a/src/effects/SkBlurDrawLooper.cpp b/src/effects/SkBlurDrawLooper.cpp
index 51e6ec98e0e2bb0130e345841f96c095f350a890..3a5c6973715704d837222ef77fb1a1670a9e91a9 100644
--- a/src/effects/SkBlurDrawLooper.cpp
+++ b/src/effects/SkBlurDrawLooper.cpp
@@ -10,7 +10,8 @@
 #include "SkBlurMaskFilter.h"
 #include "SkCanvas.h"
 #include "SkColorFilter.h"
-#include "SkFlattenableBuffers.h"
+#include "SkReadBuffer.h"
+#include "SkWriteBuffer.h"
 #include "SkMaskFilter.h"
 #include "SkPaint.h"
 #include "SkString.h"
@@ -63,7 +64,7 @@ void SkBlurDrawLooper::init(SkScalar sigma, SkScalar dx, SkScalar dy,
     }
 }
 
-SkBlurDrawLooper::SkBlurDrawLooper(SkFlattenableReadBuffer& buffer)
+SkBlurDrawLooper::SkBlurDrawLooper(SkReadBuffer& buffer)
 : INHERITED(buffer) {
 
     fDx = buffer.readScalar();
@@ -79,7 +80,7 @@ SkBlurDrawLooper::~SkBlurDrawLooper() {
     SkSafeUnref(fColorFilter);
 }
 
-void SkBlurDrawLooper::flatten(SkFlattenableWriteBuffer& buffer) const {
+void SkBlurDrawLooper::flatten(SkWriteBuffer& buffer) const {
     this->INHERITED::flatten(buffer);
     buffer.writeScalar(fDx);
     buffer.writeScalar(fDy);