Move SkShader::fLocalMatrix into SkShader constructor.

gm/pictureshader.cpp

Index: gm/pictureshader.cpp
diff --git a/gm/pictureshader.cpp b/gm/pictureshader.cpp
index 195ee738bc9ba71dad1068581a6fd6808f2a7a77..aa10822af8baaea412e0550052fe57dc61c0382c 100644
--- a/gm/pictureshader.cpp
+++ b/gm/pictureshader.cpp
@@ -141,14 +141,14 @@ private:
         canvas->drawRect(SkRect::MakeWH(fSceneSize, fSceneSize), paint);
         canvas->drawRect(SkRect::MakeXYWH(fSceneSize * 1.1f, 0, fSceneSize, fSceneSize), paint);
 
-        fPictureShaders[tileMode]->setLocalMatrix(localMatrix);
-        paint.setShader(fPictureShaders[tileMode].get());
+        paint.setShader(SkShader::CreateLocalMatrixWrapper(fPictureShaders[tileMode].get(),
+                                                           localMatrix))->unref();
         canvas->drawRect(SkRect::MakeWH(fSceneSize, fSceneSize), paint);
 
         canvas->translate(fSceneSize * 1.1f, 0);
 
-        fBitmapShaders[tileMode]->setLocalMatrix(localMatrix);
-        paint.setShader(fBitmapShaders[tileMode].get());
+        paint.setShader(SkShader::CreateLocalMatrixWrapper(fBitmapShaders[tileMode].get(),
+                                                           localMatrix))->unref();
         canvas->drawRect(SkRect::MakeWH(fSceneSize, fSceneSize), paint);
 
         canvas->restore();