ui: Use stl utilities from the base namespace

ui/wm/core/window_animations.cc

Index: ui/wm/core/window_animations.cc
diff --git a/ui/wm/core/window_animations.cc b/ui/wm/core/window_animations.cc
index 0c05dbfb379d6710badf7b88d852f05e857fde8a..3fd5977ded9550c9af83174fbff6716e021c0518 100644
--- a/ui/wm/core/window_animations.cc
+++ b/ui/wm/core/window_animations.cc
@@ -95,7 +95,7 @@ class HidingWindowAnimationObserverBase : public aura::WindowObserver {
       DCHECK(iter != window_->parent()->children().end());
       aura::Window* topmost_transient_child = NULL;
       for (++iter; iter != window_->parent()->children().end(); ++iter) {
-        if (ContainsValue(transient_children, *iter))
+        if (base::ContainsValue(transient_children, *iter))
           topmost_transient_child = *iter;
       }
       if (topmost_transient_child) {