Add flag to gradients to interpolate colors in premul space. Experimental API to encapsulate the sh…

src/effects/gradients/SkTwoPointConicalGradient.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTwoPointConicalGradient.h"
 
@@ skipping 157 matching lines @@
 }
 
 void SkTwoPointConicalGradient::init() {
     fRec.init(fCenter1, fRadius1, fCenter2, fRadius2);
     fPtsToUnit.reset();
 }
 
 /////////////////////////////////////////////////////////////////////
 
 SkTwoPointConicalGradient::SkTwoPointConicalGradient(
-    const SkPoint& start, SkScalar startRadius,
-    const SkPoint& end, SkScalar endRadius,
-    const Descriptor& desc)
+        const SkPoint& start, SkScalar startRadius,
+        const SkPoint& end, SkScalar endRadius,
+        const Descriptor& desc)
     : SkGradientShaderBase(desc),
     fCenter1(start),
     fCenter2(end),
     fRadius1(startRadius),
     fRadius2(endRadius) {
     // this is degenerate, and should be caught by our caller
     SkASSERT(fCenter1 != fCenter2 || fRadius1 != fRadius2);
     this->init();
 }
 
@@ skipping 565 matching lines @@
     str->appendScalar(fCenter2.fY);
     str->append(") radius2: ");
     str->appendScalar(fRadius2);
     str->append(" ");
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif