Move implementation of SkFilterShader into its source file.

src/core/SkFilterShader.cpp

Index: src/core/SkFilterShader.cpp
diff --git a/src/core/SkColorFilter.cpp b/src/core/SkFilterShader.cpp
similarity index 69%
copy from src/core/SkColorFilter.cpp
copy to src/core/SkFilterShader.cpp
index 383397dbcae59854e923c04df42b69c78c9ef6b3..4fcb9361f199f849a35240ec6096aa86a1f03a04 100644
--- a/src/core/SkColorFilter.cpp
+++ b/src/core/SkFilterShader.cpp
@@ -1,59 +1,27 @@
 /*
- * Copyright 2006 The Android Open Source Project
+ * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#include "SkColorFilter.h"
 #include "SkFilterShader.h"
+
+#include "SkColorFilter.h"
 #include "SkFlattenableBuffers.h"
 #include "SkShader.h"
-#include "SkUnPreMultiply.h"
 #include "SkString.h"
 
-SK_DEFINE_INST_COUNT(SkColorFilter)
-
-bool SkColorFilter::asColorMode(SkColor* color, SkXfermode::Mode* mode) const {
-    return false;
-}
-
-bool SkColorFilter::asColorMatrix(SkScalar matrix[20]) const {
-    return false;
-}
-
-bool SkColorFilter::asComponentTable(SkBitmap*) const {
-    return false;
-}
-
-void SkColorFilter::filterSpan16(const uint16_t s[], int count, uint16_t d[]) const {
-    SkASSERT(this->getFlags() & SkColorFilter::kHasFilter16_Flag);
-    SkDEBUGFAIL("missing implementation of SkColorFilter::filterSpan16");
-
-    if (d != s) {
-        memcpy(d, s, count * sizeof(uint16_t));
-    }
-}
-
-SkColor SkColorFilter::filterColor(SkColor c) const {
-    SkPMColor dst, src = SkPreMultiplyColor(c);
-    this->filterSpan(&src, 1, &dst);
-    return SkUnPreMultiply::PMColorToColor(dst);
-}
-
-GrEffectRef* SkColorFilter::asNewEffect(GrContext*) const {
-    return NULL;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
 SkFilterShader::SkFilterShader(SkShader* shader, SkColorFilter* filter) {
-    fShader = shader;   shader->ref();
-    fFilter = filter;   filter->ref();
+    fShader = shader;
+    shader->ref();
+
+    fFilter = filter;
+    filter->ref();
 }
 
-SkFilterShader::SkFilterShader(SkFlattenableReadBuffer& buffer) :
-        INHERITED(buffer) {
+SkFilterShader::SkFilterShader(SkFlattenableReadBuffer& buffer)
+    : INHERITED(buffer) {
     fShader = buffer.readFlattenableT<SkShader>();
     fFilter = buffer.readFlattenableT<SkColorFilter>();
 }