Give up focus if the focused view becomes unfocusable

ui/views/focus/focus_traversal_unittest.cc

Index: ui/views/focus/focus_traversal_unittest.cc
diff --git a/ui/views/focus/focus_traversal_unittest.cc b/ui/views/focus/focus_traversal_unittest.cc
index e3f93e7f92361d35dd4752b5f846eea50b5eaedb..970f8af3668298f07340679b26471bb3e18f8c7e 100644
--- a/ui/views/focus/focus_traversal_unittest.cc
+++ b/ui/views/focus/focus_traversal_unittest.cc
@@ -134,7 +134,7 @@ class BorderView : public NativeViewHost {
  public:
   explicit BorderView(View* child) : child_(child), widget_(NULL) {
     DCHECK(child);
-    set_focusable(false);
+    SetFocusable(false);
   }
 
   virtual ~BorderView() {}
@@ -543,7 +543,7 @@ void FocusTraversalTest::InitContentView() {
   y += 60;
 
   contents = new View();
-  contents->set_focusable(true);
+  contents->SetFocusable(true);
   contents->set_background(Background::CreateSolidBackground(SK_ColorBLUE));
   contents->set_id(kThumbnailContainerID);
   button = new LabelButton(NULL, ASCIIToUTF16("Star"));
@@ -756,10 +756,10 @@ TEST_F(FocusTraversalTest, PaneTraversal) {
 
   FocusSearch focus_search_right(right_container_, true, true);
   right_container_->EnablePaneFocus(&focus_search_right);
-  FindViewByID(kRosettaLinkID)->set_focusable(false);
-  FindViewByID(kStupeurEtTremblementLinkID)->set_focusable(false);
-  FindViewByID(kDinerGameLinkID)->set_accessibility_focusable(true);
-  FindViewByID(kDinerGameLinkID)->set_focusable(false);
+  FindViewByID(kRosettaLinkID)->SetFocusable(false);
+  FindViewByID(kStupeurEtTremblementLinkID)->SetFocusable(false);
+  FindViewByID(kDinerGameLinkID)->SetAccessibilityFocusable(true);
+  FindViewByID(kDinerGameLinkID)->SetFocusable(false);
   FindViewByID(kAsterixLinkID)->RequestFocus();
 
   // Traverse the focus hierarchy within the pane several times.