More Windows 64b compilation warning fixes

src/gpu/SkGpuDevice.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 "SkGpuDevice.h"
 
 #include "effects/GrTextureDomainEffect.h"
@@ skipping 553 matching lines @@
         return;
     }
 
     GrPaint grPaint;
     if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
         return;
     }
 
     fContext->drawVertices(grPaint,
                            gPointMode2PrimtiveType[mode],
-                           count,
+                           SkToS32(count),
                            (GrPoint*)pts,
                            NULL,
                            NULL,
                            NULL,
                            0);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 void SkGpuDevice::drawRect(const SkDraw& draw, const SkRect& rect,
@@ skipping 1258 matching lines @@
                          GrTexture* texture,
                          bool needClear)
     : SkBitmapDevice(make_bitmap(context, texture->asRenderTarget())) {
 
     SkASSERT(texture && texture->asRenderTarget());
     // This constructor is called from onCreateCompatibleDevice. It has locked the RT in the texture
     // cache. We pass true for the third argument so that it will get unlocked.
     this->initFromRenderTarget(context, texture->asRenderTarget(), true);
     fNeedClear = needClear;
 }