Remove VectorIconId references from the codebase

ash/system/palette/palette_tool_manager.h

 // Copyright 2016 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.
 
 #ifndef ASH_SYSTEM_PALETTE_PALETTE_TOOL_MANAGER_H_
 #define ASH_SYSTEM_PALETTE_PALETTE_TOOL_MANAGER_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 64 matching lines @@
 
   // Deactivates the given tool.
   void DeactivateTool(PaletteToolId tool_id);
 
   // Returns true if the given tool is active.
   bool IsToolActive(PaletteToolId tool_id);
 
   // Returns the active tool for the given group.
   PaletteToolId GetActiveTool(PaletteGroup group);
 
-  // Fetch the active tray icon for the given tool. Returns
-  // gfx::VectorIconId::VECTOR_ICON_NONE if not available.
+  // Fetch the active tray icon for the given tool. Returns gfx::kNoneIcon if

[Evan Stade, 2017/06/06 21:28:57]

nit: returns an empty icon (not necessarily kNoneIcon but is_empty() should be
true)

[tdanderson, 2017/06/07 15:55:55]

Done.

+  // not available.
   const gfx::VectorIcon& GetActiveTrayIcon(PaletteToolId tool_id) const;
 
   // Create views for all of the registered tools.
   std::vector<PaletteToolView> CreateViews();
 
   // Called when the views returned by CreateViews have been destroyed. This
   // should clear any (now) stale references.
   void NotifyViewsDestroyed();
 
   // Helper method to disable any active tool in the given |group|.
@@ skipping 19 matching lines @@
 
   // Owned list of all tools.
   std::vector<std::unique_ptr<PaletteTool>> tools_;
 
   DISALLOW_COPY_AND_ASSIGN(PaletteToolManager);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_PALETTE_PALETTE_TOOL_MANAGER_H_