pdf: ifgnore shader colors applied for 0 range.

src/pdf/SkPDFShader.cpp

Index: src/pdf/SkPDFShader.cpp
===================================================================
--- src/pdf/SkPDFShader.cpp	(revision 11306)
+++ src/pdf/SkPDFShader.cpp	(working copy)
@@ -55,6 +55,10 @@
  */
 static void interpolateColorCode(SkScalar range, SkScalar* curColor,
                                  SkScalar* prevColor, SkString* result) {
+    if (range == SkIntToScalar(0)) {
+        result->append("pop");

[vandebo (ex-Chrome), 2013/09/17 16:07:35]

Looking more closely, it seems that this is not sufficient, you also need to
output curColor.

Probably also need a test (either a unit test if you can figure out how to build
one, or a gm).

[edisonn, 2013/09/17 16:42:07]

changed the implementation

+    }
+
     static const int kColorComponents = 3;
 
     // Figure out how to scale each color component.