Try out scalar picture sizes

dm/DMSKPTask.cpp

 #include "DMSKPTask.h"
 #include "DMUtil.h"
 #include "DMWriteTask.h"
 
 #include "SkCommandLineFlags.h"
 #include "SkPictureRecorder.h"
 
 DEFINE_int32(skpMaxWidth,  1000, "Max SKPTask viewport width.");
 DEFINE_int32(skpMaxHeight, 1000, "Max SKPTask viewport height.");
 
 namespace DM {
 
 SKPTask::SKPTask(Reporter* r, TaskRunner* tr, const SkPicture* pic, SkString filename)
     : CpuTask(r, tr), fPicture(SkRef(pic)), fName(FileToTaskName(filename)) {}
 
 void SKPTask::draw() {
-    const int width  = SkTMin(fPicture->width(),  FLAGS_skpMaxWidth),
-              height = SkTMin(fPicture->height(), FLAGS_skpMaxHeight);
+    const int width  = SkTMin(SkScalarCeilToInt(fPicture->cullRect().width()),  FLAGS_skpMaxWidth),
+              height = SkTMin(SkScalarCeilToInt(fPicture->cullRect().height()), FLAGS_skpMaxHeight);
     SkBitmap bitmap;
     AllocatePixels(kN32_SkColorType, width, height, &bitmap);
     DrawPicture(*fPicture, &bitmap);
 
     this->spawnChild(SkNEW_ARGS(WriteTask, (*this, bitmap)));
 }
 
 }  // namespace DM