cc: Always round up target image size.

cc/tiles/software_image_decode_controller.cc

Index: cc/tiles/software_image_decode_controller.cc
diff --git a/cc/tiles/software_image_decode_controller.cc b/cc/tiles/software_image_decode_controller.cc
index 96f5618a48f3d8e79a3b7fe343562e54643bfbf7..68d84f72f3022b11caff9a34d7ba851c3f54182c 100644
--- a/cc/tiles/software_image_decode_controller.cc
+++ b/cc/tiles/software_image_decode_controller.cc
@@ -738,8 +738,9 @@ ImageDecodeControllerKey ImageDecodeControllerKey::FromDrawImage(
       gfx::Rect(image.image()->width(), image.image()->height()));
 
   gfx::Size target_size(
-      SkScalarRoundToInt(std::abs(src_rect.width() * scale.width())),
-      SkScalarRoundToInt(std::abs(src_rect.height() * scale.height())));
+      static_cast<int>(std::ceil(std::abs(src_rect.width() * scale.width()))),
+      static_cast<int>(
+          std::ceil(std::abs(src_rect.height() * scale.height()))));
 
   // Start with the quality that was requested.
   SkFilterQuality quality = image.filter_quality();