use SkIntToScalar, fix windows build

tools/bench_playback.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 "SkCommandLineFlags.h"
 #include "SkForceLinking.h"
 #include "SkGraphics.h"
@@ skipping 12 matching lines @@
 DEFINE_bool(skr, false, "Play via SkRecord instead of SkPicture.");
 DEFINE_int32(tile, 1000000000, "Simulated tile size.");
 
 static void bench(SkPMColor* scratch, SkPicture& src, const char* name) {
     SkRecord record;
     SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, src.width(), src.height());
     src.draw(&recorder);
 
     SkAutoTDelete<SkCanvas> canvas(
         SkCanvas::NewRasterDirectN32(src.width(), src.height(), scratch, 0));
-    canvas->clipRect(SkRect::MakeWH(FLAGS_tile, FLAGS_tile));
+    canvas->clipRect(SkRect::MakeWH(SkIntToScalar(FLAGS_tile), SkIntToScalar(FLAGS_tile)));
 
     const SkMSec start = SkTime::GetMSecs();
     for (int i = 0; i < FLAGS_loops; i++) {
         if (FLAGS_skr) {
             SkRecordDraw(record, canvas.get());
         } else {
             src.draw(canvas.get());
         }
     }
 
@@ skipping 40 matching lines @@
         bench(scratch.get(), *src, filename.c_str());
     }
     return failed ? 1 : 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif