Use nearest neighbor filtering for non-translated quads

ui/gfx/transform_unittest.cc

Index: ui/gfx/transform_unittest.cc
diff --git a/ui/gfx/transform_unittest.cc b/ui/gfx/transform_unittest.cc
index 83255388f237dac8f47cdafddee8711370f25e88..8a79d4c68216682544ba34e48ee30a1645ec3e49 100644
--- a/ui/gfx/transform_unittest.cc
+++ b/ui/gfx/transform_unittest.cc
@@ -1158,6 +1158,27 @@ TEST(XFormTest, FactorTRS) {
   }
 }
 
+TEST(XFormTest, IntegerTranslation) {
+  gfx::Transform transform;
+  EXPECT_TRUE(transform.IsIdentityOrIntegerTranslation());
+
+  transform.Translate3d(1, 2, 3);

[danakj, 2012/11/30 18:34:56]

Can you add negatives to this test as well?

+  EXPECT_TRUE(transform.IsIdentityOrIntegerTranslation());
+
+  transform.MakeIdentity();
+  transform.Translate3d(4.5, 0, 0);
+  EXPECT_FALSE(transform.IsIdentityOrIntegerTranslation());
+
+  transform.MakeIdentity();
+  transform.Translate3d(0, 6.7, 0);
+  EXPECT_FALSE(transform.IsIdentityOrIntegerTranslation());
+
+  transform.MakeIdentity();
+  transform.Translate3d(0, 0, 8.9);
+  EXPECT_FALSE(transform.IsIdentityOrIntegerTranslation());
+}
+
+
 }  // namespace
 
 }  // namespace gfx