[ash-md] Updates ash shelf tooltips to MD

ash/common/material_design/material_design_controller.h

Index: ash/common/material_design/material_design_controller.h
diff --git a/ash/common/material_design/material_design_controller.h b/ash/common/material_design/material_design_controller.h
index 803b671bf36f1b36878f6eddefc14d0507040d58..f03168748b5fbaa6de162b9e4f57e9a2ccb5850d 100644
--- a/ash/common/material_design/material_design_controller.h
+++ b/ash/common/material_design/material_design_controller.h
@@ -43,6 +43,9 @@ class ASH_EXPORT MaterialDesignController {
   // Returns true if Material Design features are enabled for Chrome OS shelf.
   static bool IsShelfMaterial();
 
+  // Returns true if Chrome OS tooltips are using Material Design features.
+  static bool IsTooltipMaterial();

[tdanderson, 2016/07/22 17:24:31]

Since you're in the process of making the top chrome and other system tooltips
conform to MD style, I'd vote for just landing this as being on by default. I
think it's the right thing to do (and would simplify this CL).

If this does land behind the flag, though, I'd suggest renaming this to
something like IsShelfTooltipMaterial() to clarify that they are for the shelf
app icons.

[varkha, 2016/07/22 22:03:56]

Done.

+
   // Returns true if material design versions of icons should be used in the
   // status tray and system menu.
   static bool UseMaterialDesignSystemIcons();