gfx: Make conversions from gfx::Point to PointF explicit.

content/renderer/pepper/pepper_graphics_2d_host.cc

Index: content/renderer/pepper/pepper_graphics_2d_host.cc
diff --git a/content/renderer/pepper/pepper_graphics_2d_host.cc b/content/renderer/pepper/pepper_graphics_2d_host.cc
index 40c2cc5b74416174ca88bc0f578ec9bc7c5b57a4..02a984b0c0b5ca51140afc7563bdb26eeed8f58d 100644
--- a/content/renderer/pepper/pepper_graphics_2d_host.cc
+++ b/content/renderer/pepper/pepper_graphics_2d_host.cc
@@ -805,14 +805,14 @@ bool PepperGraphics2DHost::ConvertToLogicalPixels(float scale,
   if (delta) {
     gfx::Point original_delta = *delta;
     float inverse_scale = 1.0f / scale;
-    *delta = gfx::ToFlooredPoint(gfx::ScalePoint(*delta, scale));
+    *delta = gfx::ScaleToFlooredPoint(*delta, scale);
 
     gfx::Rect inverse_scaled_rect =
         gfx::ScaleToEnclosingRect(*op_rect, inverse_scale);
     if (original_rect != inverse_scaled_rect)
       return false;
     gfx::Point inverse_scaled_point =
-        gfx::ToFlooredPoint(gfx::ScalePoint(*delta, inverse_scale));
+        gfx::ScaleToFlooredPoint(*delta, inverse_scale);
     if (original_delta != inverse_scaled_point)
       return false;
   }