Don't return unsupported scales frrom GetScaleFactorFromScale()

ui/base/native_theme/native_theme_android.cc

Index: ui/base/native_theme/native_theme_android.cc
diff --git a/ui/base/native_theme/native_theme_android.cc b/ui/base/native_theme/native_theme_android.cc
index 79b1067d4c838b0374540c76e8a2c0eda5479976..e95e5e32aa5dc4b623eb8899cc5bae1b7de7794d 100644
--- a/ui/base/native_theme/native_theme_android.cc
+++ b/ui/base/native_theme/native_theme_android.cc
@@ -669,7 +669,7 @@ void NativeThemeAndroid::DrawImageInt(SkCanvas* sk_canvas,
   // TODO(pkotwicz): Do something better and don't infer device
   // scale factor from canvas scale.
   SkMatrix m = sk_canvas->getTotalMatrix();
-  ui::ScaleFactor device_scale_factor = ui::GetScaleFactorFromScale(
+  ui::ScaleFactor device_scale_factor = ui::GetSupportedScaleFactorFromScale(
       SkScalarAbs(m.getScaleX()));
   scoped_ptr<gfx::Canvas> canvas(gfx::Canvas::CreateCanvasWithoutScaling(
       sk_canvas, device_scale_factor));
@@ -690,7 +690,7 @@ void NativeThemeAndroid::DrawTiledImage(SkCanvas* sk_canvas,
   // TODO(pkotwicz): Do something better and don't infer device
   // scale factor from canvas scale.
   SkMatrix m = sk_canvas->getTotalMatrix();
-  ui::ScaleFactor device_scale_factor = ui::GetScaleFactorFromScale(
+  ui::ScaleFactor device_scale_factor = ui::GetSupportedScaleFactorFromScale(
       SkScalarAbs(m.getScaleX()));
   scoped_ptr<gfx::Canvas> canvas(gfx::Canvas::CreateCanvasWithoutScaling(
       sk_canvas, device_scale_factor));