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/samplecode/SampleAARectModes.cpp b/samplecode/SampleAARectModes.cpp
index bea0e28..f9972ae 100644
--- a/samplecode/SampleAARectModes.cpp
+++ b/samplecode/SampleAARectModes.cpp
@@ -68,14 +68,13 @@
     *bm.getAddr32(1, 0) = *bm.getAddr32(0, 1) = SkPackARGB32(0xFF, 0xCC,
                                                              0xCC, 0xCC);
 
-    SkShader* s = SkShader::CreateBitmapShader(bm,
-                                               SkShader::kRepeat_TileMode,
-                                               SkShader::kRepeat_TileMode);
-
     SkMatrix m;
     m.setScale(SkIntToScalar(6), SkIntToScalar(6));
-    s->setLocalMatrix(m);
-    return s;
+
+    return SkShader::CreateBitmapShader(bm,
+                                        SkShader::kRepeat_TileMode,
+                                        SkShader::kRepeat_TileMode,
+                                        &m);
 }
 
 class AARectsModesView : public SampleView {