Add a color argument to accessibilityPrivate.setFocusRing

chrome/browser/chromeos/ui/accessibility_focus_ring_controller.h

Index: chrome/browser/chromeos/ui/accessibility_focus_ring_controller.h
diff --git a/chrome/browser/chromeos/ui/accessibility_focus_ring_controller.h b/chrome/browser/chromeos/ui/accessibility_focus_ring_controller.h
index 6eb71726fac4fb9caeb89c6bcd17257c282e0b29..a46e02954fda52af894f9f9ccd8389787cf0dfcd 100644
--- a/chrome/browser/chromeos/ui/accessibility_focus_ring_controller.h
+++ b/chrome/browser/chromeos/ui/accessibility_focus_ring_controller.h
@@ -27,6 +27,10 @@ class AccessibilityFocusRingController : public FocusRingLayerDelegate {
 
   enum FocusRingBehavior { FADE_OUT_FOCUS_RING, PERSIST_FOCUS_RING };
 
+  // Set the focus ring color, or reset it back to the default.
+  void SetFocusRingColor(SkColor color);

[xiyuan, 2017/03/30 21:27:38]

nit: #include "third_party/skia/include/core/SkColor.h"

[dmazzoni, 2017/03/30 21:34:52]

Done.

+  void ResetFocusRingColor();
+
   // Draw a focus ring around the given set of rects, in global screen
   // coordinates. Use |focus_ring_behavior| to specify whether the focus
   // ring should persist or fade out.
@@ -100,6 +104,8 @@ class AccessibilityFocusRingController : public FocusRingLayerDelegate {
   std::vector<AccessibilityFocusRing> focus_rings_;
   std::vector<std::unique_ptr<AccessibilityFocusRingLayer>> focus_layers_;
   FocusRingBehavior focus_ring_behavior_ = FADE_OUT_FOCUS_RING;
+  bool has_focus_ring_color_ = false;
+  SkColor focus_ring_color_ = SK_ColorBLACK;
 
   LayerAnimationInfo cursor_animation_info_;
   gfx::Point cursor_location_;