Use 2x resources for 1.25

ui/gfx/image/image_skia.cc

Index: ui/gfx/image/image_skia.cc
diff --git a/ui/gfx/image/image_skia.cc b/ui/gfx/image/image_skia.cc
index 21d08de30037bc1f0af1d9a0dd25fc927c3cbe72..737d9f4db1cb09c706d896489fb29f038ba2589f 100644
--- a/ui/gfx/image/image_skia.cc
+++ b/ui/gfx/image/image_skia.cc
@@ -32,10 +32,10 @@ gfx::ImageSkiaRep& NullImageRep() {
 std::vector<float>* g_supported_scales = NULL;
 
 // The difference to fall back to the smaller scale factor rather than the
-// larger one. For example, assume 1.25 is requested but only 1.0 and 2.0 are
+// larger one. For example, assume 1.20 is requested but only 1.0 and 2.0 are
 // supported. In that case, not fall back to 2.0 but 1.0, and then expand
 // the image to 1.25.
-const float kFallbackToSmallerScaleDiff = 0.25f;
+const float kFallbackToSmallerScaleDiff = 0.20f;
 
 }  // namespace