Add drawRegion() API to SkCanvas

src/core/SkPicturePlayback.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkPatchUtils.h"
 #include "SkPictureData.h"
@@ skipping 451 matching lines @@
             }
         } break;
         case DRAW_RECT: {
             const SkPaint* paint = fPictureData->getPaint(reader);
             SkRect rect;
             reader->readRect(&rect);
             if (paint) {
                 canvas->drawRect(rect, *paint);
             }
         } break;
+        case DRAW_REGION: {
+            const SkPaint* paint = fPictureData->getPaint(reader);
+            SkRegion region;
+            reader->readRegion(&region);
+            if (paint) {
+                canvas->drawRegion(region, *paint);
+            }
+        } break;
         case DRAW_RRECT: {
             const SkPaint* paint = fPictureData->getPaint(reader);
             SkRRect rrect;
             reader->readRRect(&rrect);
             if (paint) {
                 canvas->drawRRect(rrect, *paint);
             }
         } break;
         case DRAW_SPRITE: {
             /* const SkPaint* paint = */ fPictureData->getPaint(reader);
@@ skipping 167 matching lines @@
         case TRANSLATE_Z: {
 #ifdef SK_EXPERIMENTAL_SHADOWING
             SkScalar dz = reader->readScalar();
             canvas->translateZ(dz);
 #endif
         } break;
         default:
             SkASSERTF(false, "Unknown draw type: %d", op);
     }
 }