Ensure that the extension icons show up in the omnibox at fractional scales.

ui/base/layout.cc

Index: ui/base/layout.cc
diff --git a/ui/base/layout.cc b/ui/base/layout.cc
index 5aaa7aa4e0006ec99b5b4791f631bb13b99b157b..781ab64d4309868c73b2e2d1062b6391e4ff8533 100644
--- a/ui/base/layout.cc
+++ b/ui/base/layout.cc
@@ -92,6 +92,13 @@ float GetScaleForScaleFactor(ScaleFactor scale_factor) {
   return kScaleFactorScales[scale_factor];
 }
 
+bool IsSupportedScale(float scale) {
+  const std::vector<float>& supported_scales =
+      gfx::ImageSkia::GetSupportedScales();

[sky, 2015/03/25 14:49:10]

Why are you using ImageSkia and not g_supported_scale_factors?

[ananta, 2015/03/25 16:56:05]

Done.

+  return std::find(supported_scales.begin(), supported_scales.end(), scale)
+      != supported_scales.end();
+}
+
 namespace test {
 
 ScopedSetSupportedScaleFactors::ScopedSetSupportedScaleFactors(