Move SkShader::fLocalMatrix into SkShader constructor.

src/effects/gradients/SkLinearGradient.cpp

Index: src/effects/gradients/SkLinearGradient.cpp
diff --git a/src/effects/gradients/SkLinearGradient.cpp b/src/effects/gradients/SkLinearGradient.cpp
index e660d7cd2d6ae936795805085eb89a89601f6113..70bbbf3b601e7caa070642a41b84a749ada036d7 100644
--- a/src/effects/gradients/SkLinearGradient.cpp
+++ b/src/effects/gradients/SkLinearGradient.cpp
@@ -52,8 +52,9 @@ static void pts_to_unit_matrix(const SkPoint pts[2], SkMatrix* matrix) {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkLinearGradient::SkLinearGradient(const SkPoint pts[2], const Descriptor& desc)
-    : SkGradientShaderBase(desc)
+SkLinearGradient::SkLinearGradient(const SkPoint pts[2], const Descriptor& desc,
+                                   const SkMatrix* localMatrix)
+    : SkGradientShaderBase(desc, localMatrix)
     , fStart(pts[0])
     , fEnd(pts[1]) {
     pts_to_unit_matrix(pts, &fPtsToUnit);