Try out scalar picture sizes

gm/pictureshader.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 "gm.h"
 
 #include "SkBitmap.h"
@@ skipping 12 matching lines @@
 };
 
 class PictureShaderGM : public skiagm::GM {
 public:
     PictureShaderGM(SkScalar tileSize, SkScalar sceneSize)
         : fTileSize(tileSize)
         , fSceneSize(sceneSize) {
 
         // Build the picture.
         SkPictureRecorder recorder;
-        SkCanvas* pictureCanvas = recorder.beginRecording(SkScalarRoundToInt(tileSize),
-                                                          SkScalarRoundToInt(tileSize),
-                                                          NULL, 0);
+        SkCanvas* pictureCanvas = recorder.beginRecording(tileSize, tileSize, NULL, 0);
         this->drawTile(pictureCanvas);
         fPicture.reset(recorder.endRecording());
 
         // Build a reference bitmap.
-        fBitmap.allocN32Pixels(SkScalarRoundToInt(tileSize), SkScalarRoundToInt(tileSize));
+        fBitmap.allocN32Pixels(SkScalarCeilToInt(tileSize), SkScalarCeilToInt(tileSize));
         fBitmap.eraseColor(SK_ColorTRANSPARENT);
         SkCanvas bitmapCanvas(fBitmap);
         this->drawTile(&bitmapCanvas);
     }
 
 protected:
     virtual uint32_t onGetFlags() const SK_OVERRIDE {
         return kSkipTiled_Flag;
     }
 
@@ skipping 105 matching lines @@
     SkScalar    fTileSize;
     SkScalar    fSceneSize;
 
     SkAutoTUnref<SkPicture> fPicture;
     SkBitmap fBitmap;
 
     typedef GM INHERITED;
 };
 
 DEF_GM( return SkNEW_ARGS(PictureShaderGM, (50, 100)); )