add Method param to drawTextOnPath, supporting SVG spec

samplecode/SampleShaderText.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
@@ skipping 150 matching lines @@
         SkPath path;
         path.arcTo(SkRect::MakeXYWH(SkIntToScalar(-40), SkIntToScalar(15),
                                     SkIntToScalar(300), SkIntToScalar(90)),
                                     SkIntToScalar(225), SkIntToScalar(90),
                                     false);
         path.close();
 
         static const int testsPerCol = 8;
         static const int rowHeight = 60;
         static const int colWidth = 300;
+        SkCanvas::TextOnPathMethod method = SkCanvas::kStretch_TextOnPathMethod;
         canvas->save();
         for (size_t s = 0; s < SK_ARRAY_COUNT(shaders); s++) {
             canvas->save();
             size_t i = 2*s;
             canvas->translate(SkIntToScalar((i / testsPerCol) * colWidth),
                               SkIntToScalar((i % testsPerCol) * rowHeight));
             paint.setShader(shaders[s])->unref();
             canvas->drawText(text, textLen, 0, textBase, paint);
             canvas->restore();
             canvas->save();
             ++i;
             canvas->translate(SkIntToScalar((i / testsPerCol) * colWidth),
                               SkIntToScalar((i % testsPerCol) * rowHeight));
-            canvas->drawTextOnPath(text, textLen, path, NULL, paint);
+            canvas->drawTextOnPath(text, textLen, path, NULL, method, paint);
             canvas->restore();
         }
         canvas->restore();
     }
 
 private:
     typedef SampleView INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new ShaderTextView; }
 static SkViewRegister reg(MyFactory);