Use SkShader's localMat for SkLocalMatrixShader.

include/core/SkPicture.h

Index: include/core/SkPicture.h
diff --git a/include/core/SkPicture.h b/include/core/SkPicture.h
index 1bf3171496b80db1ac5096218e3839b212747ced..4093fc829d67ce309a207b9a5a0f942ae950541d 100644
--- a/include/core/SkPicture.h
+++ b/include/core/SkPicture.h
@@ -232,13 +232,14 @@ private:
     // V27: Remove SkUnitMapper from gradients (and skia).
     // V28: No longer call bitmap::flatten inside SkWriteBuffer::writeBitmap.
     // V29: Removed SaveFlags parameter from save().
+    // V30: Remove redundant SkMatrix from SkLocalMatrixShader.
 
     // Note: If the picture version needs to be increased then please follow the
     // steps to generate new SKPs in (only accessible to Googlers): http://goo.gl/qATVcw
 
     // Only SKPs within the min/current picture version range (inclusive) can be read.
     static const uint32_t MIN_PICTURE_VERSION = 19;
-    static const uint32_t CURRENT_PICTURE_VERSION = 29;
+    static const uint32_t CURRENT_PICTURE_VERSION = 30;
 
     mutable uint32_t      fUniqueID;