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

ui/gfx/image/image_skia.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/image/image_skia.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 
@@ skipping 299 matching lines @@
 // static
 float ImageSkia::GetMaxSupportedScale() {
   return g_supported_scales->back();
 }
 
 // static
 ImageSkia ImageSkia::CreateFrom1xBitmap(const SkBitmap& bitmap) {
   return ImageSkia(ImageSkiaRep(bitmap, 0.0f));
 }
 
+// static
+bool ImageSkia::IsSupportedScale(float scale) {

[oshima, 2015/03/24 21:57:01]

can you move this to ui/base/layout.h ?

[ananta, 2015/03/24 23:11:56]

Done.

+  const std::vector<float>& supported_scales = GetSupportedScales();
+  return std::find(supported_scales.begin(), supported_scales.end(), scale)
+      != supported_scales.end();
+}
+
 scoped_ptr<ImageSkia> ImageSkia::DeepCopy() const {
   ImageSkia* copy = new ImageSkia;
   if (isNull())
     return make_scoped_ptr(copy);
 
   CHECK(CanRead());
 
   std::vector<gfx::ImageSkiaRep>& reps = storage_->image_reps();
   for (std::vector<gfx::ImageSkiaRep>::iterator iter = reps.begin();
        iter != reps.end(); ++iter) {
@@ skipping 162 matching lines @@
 bool ImageSkia::CanModify() const {
   return !storage_.get() || storage_->CanModify();
 }
 
 void ImageSkia::DetachStorageFromThread() {
   if (storage_.get())
     storage_->DetachFromThread();
 }
 
 }  // namespace gfx