[Material][Mac] Update Omnibox bubble decorations

chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h

Index: chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
diff --git a/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h b/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
index 239cef421446a14f74c898273b7cf7cf0d822367..a35e2d3e30d3494f4b37c24dee5e88a91bbf7805 100644
--- a/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
+++ b/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
@@ -105,6 +105,9 @@ class LocationBarDecoration {
   // omitted for this width;
   static const CGFloat kOmittedWidth;
 
+  // Material text color if the location bar is dark.
+  static const SkColor kMaterialDarkModeTextColor;
+
  protected:
   // Gets the color used to draw the Material Design icon. The default
   // implementation satisfies most cases - few subclasses should need to
@@ -116,6 +119,9 @@ class LocationBarDecoration {
   // some decorations are assigned their icon (vs. creating it themselves).
   virtual gfx::VectorIconId GetMaterialVectorIconId() const;
 
+  // Gets the color used for the divider. Only used in Material design.
+  NSColor* GetDividerColor(bool location_bar_is_dark) const;
+
  private:
   bool visible_;