clang/win: Let remaining chromium_code targets build with -Wextra.

ui/gfx/range/range_win_unittest.cc

Index: ui/gfx/range/range_win_unittest.cc
diff --git a/ui/gfx/range/range_win_unittest.cc b/ui/gfx/range/range_win_unittest.cc
index f7a442c5bbfdf311df44be3a337a1b5ce572df36..d15375b6974de2356bb513e24171077ccfdcd210 100644
--- a/ui/gfx/range/range_win_unittest.cc
+++ b/ui/gfx/range/range_win_unittest.cc
@@ -45,8 +45,8 @@ TEST(RangeTest, ToCHARRANGE) {
 TEST(RangeTest, ReversedToCHARRANGE) {
   gfx::Range r(20, 10);
   CHARRANGE cr = r.ToCHARRANGE();
-  EXPECT_EQ(20U, cr.cpMin);
-  EXPECT_EQ(10U, cr.cpMax);
+  EXPECT_EQ(20, cr.cpMin);
+  EXPECT_EQ(10, cr.cpMax);
 }
 
 TEST(RangeTest, FromCHARRANGEInvalid) {