Second wave of Win64 warning cleanup

https://codereview.chromium.org/27343002/



git-svn-id: http://skia.googlecode.com/svn/trunk@11778 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/utils/SkCanvasStateUtils.cpp b/src/utils/SkCanvasStateUtils.cpp
index 0cc42c5..c62bc04 100644
--- a/src/utils/SkCanvasStateUtils.cpp
+++ b/src/utils/SkCanvasStateUtils.cpp
@@ -60,7 +60,7 @@
     union {
         struct {
             RasterConfig config; // pixel format: a value from RasterConfigs.
-            uint32_t rowBytes;   // Number of bytes from start of one line to next.
+            size_t rowBytes;     // Number of bytes from start of one line to next.
             void* pixels;        // The pixels, all (height * rowBytes) of them.
         } raster;
         struct {