Initial picture shader implementation

src/core/SkShader.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapProcShader.h"
 #include "SkReadBuffer.h"
 #include "SkMallocPixelRef.h"
 #include "SkPaint.h"
+#include "SkPicture.h"
+#include "SkPictureShader.h"
 #include "SkScalar.h"
 #include "SkShader.h"
 #include "SkWriteBuffer.h"
 
 SkShader::SkShader() {
     fLocalMatrix.reset();
     SkDEBUGCODE(fInSetContext = false;)
 }
 
 SkShader::SkShader(SkReadBuffer& buffer)
@@ skipping 150 matching lines @@
 
 GrEffectRef* SkShader::asNewEffect(GrContext*, const SkPaint&) const {
     return NULL;
 }
 
 SkShader* SkShader::CreateBitmapShader(const SkBitmap& src,
                                        TileMode tmx, TileMode tmy) {
     return ::CreateBitmapShader(src, tmx, tmy, NULL);
 }
 
+SkShader* SkShader::CreatePictureShader(SkPicture* src, TileMode tmx, TileMode tmy) {
+    return SkPictureShader::Create(src, tmx, tmy);
+}
+
 #ifndef SK_IGNORE_TO_STRING
 void SkShader::toString(SkString* str) const {
     if (this->hasLocalMatrix()) {
         str->append(" ");
         this->getLocalMatrix().toString(str);
     }
 }
 #endif
 
 //////////////////////////////////////////////////////////////////////////////
@@ skipping 158 matching lines @@
 
 #ifndef SK_IGNORE_TO_STRING
 void SkEmptyShader::toString(SkString* str) const {
     str->append("SkEmptyShader: (");
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif