Move SkShader::fLocalMatrix into SkShader constructor.

As a first step towards removing SkShader::setLocalMatrix, which will make
SkShader thread-safe, remove calls to setLocalMatrix that happen immediately
after the shader is being created. Instead, pass the matrix into the constructor
or factory method.

BUG=skia:1976
R=scroggo@google.com, reed@google.com, skyostil@google.com, mtklein@google.com

Author: dominikg@chromium.org

Review URL: https://codereview.chromium.org/245963010

git-svn-id: http://skia.googlecode.com/svn/trunk@14401 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/animator/SkPaintPart.h b/src/animator/SkPaintPart.h
index a6154e5..6f33cb4 100644
--- a/src/animator/SkPaintPart.h
+++ b/src/animator/SkPaintPart.h
@@ -51,7 +51,7 @@
     virtual SkShader* getShader();
 protected:
     virtual bool add();
-    void addPostlude(SkShader* shader);
+    SkMatrix* getMatrix(); // returns NULL if matrix is NULL
     SkDrawMatrix* matrix;
     int /*SkShader::TileMode*/ tileMode;
 };