Type conversion fixes, ui/ edition.

ui/display/util/display_util.cc

Index: ui/display/util/display_util.cc
diff --git a/ui/display/util/display_util.cc b/ui/display/util/display_util.cc
index aa23ec69a7f68972d9f1f9ad1b3859bbe0f0ac46..5d7bbb77d313c57858195f881963b1a14d42072b 100644
--- a/ui/display/util/display_util.cc
+++ b/ui/display/util/display_util.cc
@@ -60,8 +60,8 @@ float GetScaleFactor(const gfx::Size& physical_size_in_mm,
   if (IsDisplaySizeBlackListed(physical_size_in_mm))
     return 1.0f;
 
-  const unsigned int dpi = (kInchInMm * screen_size_in_pixels.width() /
-                            physical_size_in_mm.width());
+  const unsigned int dpi = static_cast<unsigned int>(
+      kInchInMm * screen_size_in_pixels.width() / physical_size_in_mm.width());
   const unsigned int threshold =
       (physical_size_in_mm.width() >= kLargeDisplayWidthThresholdMM) ?
       kHighDensityDPIThresholdLarge : kHighDensityDPIThresholdSmall;