gfx: Make conversions from Size to SizeF be explicit.

content/renderer/disambiguation_popup_helper_unittest.cc

Index: content/renderer/disambiguation_popup_helper_unittest.cc
diff --git a/content/renderer/disambiguation_popup_helper_unittest.cc b/content/renderer/disambiguation_popup_helper_unittest.cc
index 5921e308200c51cdd8ed3281bd46728dde0a82f8..65976e23ca066c98e3acd5d2f323f13d048a3457 100644
--- a/content/renderer/disambiguation_popup_helper_unittest.cc
+++ b/content/renderer/disambiguation_popup_helper_unittest.cc
@@ -44,7 +44,7 @@ TEST_F(DisambiguationPopupHelperUnittest, ClipByViewport) {
   EXPECT_TRUE(gfx::Rect(kVisibleContentSize_).Contains(zoom_rect));
   EXPECT_LE(kDisambiguationPopupMinScale, scale);
 
-  gfx::Size scaled_size = ToCeiledSize(ScaleSize(zoom_rect.size(), scale));
+  gfx::Size scaled_size = gfx::ScaleToCeiledSize(zoom_rect.size(), scale);
   EXPECT_TRUE(gfx::Rect(kScreenSize_).Contains(gfx::Rect(scaled_size)));
 }
 
@@ -62,7 +62,7 @@ TEST_F(DisambiguationPopupHelperUnittest, MiniTarget) {
   EXPECT_EQ(kDisambiguationPopupMaxScale, scale);
   EXPECT_TRUE(zoom_rect.Contains(target_rects[0]));
 
-  gfx::Size scaled_size = ToCeiledSize(ScaleSize(zoom_rect.size(), scale));
+  gfx::Size scaled_size = gfx::ScaleToCeiledSize(zoom_rect.size(), scale);
   EXPECT_TRUE(gfx::Rect(kScreenSize_).Contains(gfx::Rect(scaled_size)));
 }
 
@@ -81,7 +81,7 @@ TEST_F(DisambiguationPopupHelperUnittest, LongLinks) {
   EXPECT_EQ(kDisambiguationPopupMaxScale, scale);
   EXPECT_TRUE(zoom_rect.Contains(tap_rect));
 
-  gfx::Size scaled_size = ToCeiledSize(ScaleSize(zoom_rect.size(), scale));
+  gfx::Size scaled_size = gfx::ScaleToCeiledSize(zoom_rect.size(), scale);
   EXPECT_TRUE(gfx::Rect(kScreenSize_).Contains(gfx::Rect(scaled_size)));
 }