Update voice interaction icon shadow

ui/gfx/shadow_value.h

Index: ui/gfx/shadow_value.h
diff --git a/ui/gfx/shadow_value.h b/ui/gfx/shadow_value.h
index bf5d98d184ea3c0fbffbed3dcce5e00344cb483b..6f947a686e7594367a4282ba3a226331d4f9ecf7 100644
--- a/ui/gfx/shadow_value.h
+++ b/ui/gfx/shadow_value.h
@@ -48,6 +48,10 @@ class GFX_EXPORT ShadowValue {
   // a uniform color.
   static Insets GetBlurRegion(const ShadowValues& shadows);
 
+  // Makes ShadowValues that should match MD style shadows for the given
+  // elevation.
+  static const ShadowValues MakeShadowValues(int elevation);

[sky, 2017/06/19 21:48:27]

Remove the const.
Also, this needs a more descriptive name. MakeShadowValues is too generic.
Lastly, how much code is going to use this? I favor putting this in ash if ash
is the only placing that is going to use it.

[xc, 2017/06/19 21:57:18]

MakeMDShadowValues?

This method is used by ash and gfx::ShadowDetails which is used in a number of
non-ash code. So I am not sure we can move it into ash without duplicating code.

[sky, 2017/06/20 16:21:49]

Ok, I get it. I'm fine with MakeMdShadowValues. 

[xc, 2017/06/21 03:28:24]

Updated the name.

+
  private:
   gfx::Vector2d offset_;