[ChromeOS] Make WebUILoginView play nicer with focus.

- RequestFocus in LoadURL so that WebUILoginView is focused after window creation;
- Override TabContentsDelegate::TakeFocus and forward the focus back to web contents; This gets rid of the mysterious tab stop;

BUG=chromium-os:18466
TEST=Verify fix for chromium-os:18466.

Review URL: http://codereview.chromium.org/7506004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@95694 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/login/webui_login_view.cc

@@ -93,6 +93,7 @@ void WebUILoginView::UpdateWindowType() {
 
 void WebUILoginView::LoadURL(const GURL & url) {
   webui_login_->LoadURL(url);
+  webui_login_->RequestFocus();
 }
 
 WebUI* WebUILoginView::GetWebUI() {
@@ -211,4 +212,10 @@ bool WebUILoginView::HandleContextMenu(const ContextMenuParams& params) {
 #endif
 }
 
+bool WebUILoginView::TakeFocus(bool reverse) {
+  // Forward the focus back to web contents.
+  webui_login_->tab_contents()->FocusThroughTabTraversal(reverse);
+  return true;
+}
+
 }  // namespace chromeos

chrome/browser/chromeos/login/webui_login_view.h

@@ -99,6 +99,7 @@ class WebUILoginView : public views::View,
  private:
   // Overridden from TabContentsDelegate.
   virtual bool HandleContextMenu(const ContextMenuParams& params) OVERRIDE;
+  virtual bool TakeFocus(bool reverse) OVERRIDE;
 
   // Window that contains status area.
   // TODO(nkostylev): Temporary solution till we have