Host Chrome OS GAIA signin page in webview

chrome/browser/chromeos/login/ui/webui_login_view.cc

Index: chrome/browser/chromeos/login/ui/webui_login_view.cc
diff --git a/chrome/browser/chromeos/login/ui/webui_login_view.cc b/chrome/browser/chromeos/login/ui/webui_login_view.cc
index 2476687c6de0ad6ab8ad28076c9400f0ce28c1aa..433396b5dcc7960bad899cff30fbc44cbed5538d 100644
--- a/chrome/browser/chromeos/login/ui/webui_login_view.cc
+++ b/chrome/browser/chromeos/login/ui/webui_login_view.cc
@@ -70,6 +70,7 @@ const char kAccelNameAppLaunchBailout[] = "app_launch_bailout";
 const char kAccelNameAppLaunchNetworkConfig[] = "app_launch_network_config";
 const char kAccelNameEmbeddedSignin[] = "embedded_signin";
 const char kAccelNameNewOobe[] = "new_oobe";
+const char kAccelNameToggleWebviewSignin[] = "toggle_webview_signin";
 
 // A class to change arrow key traversal behavior when it's alive.
 class ScopedArrowKeyTraversal {
@@ -132,6 +133,9 @@ WebUILoginView::WebUILoginView()
   accel_map_[ui::Accelerator(ui::VKEY_X,
       ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN | ui::EF_SHIFT_DOWN)] =
       kAccelNameEnableDebugging;
+  accel_map_[ui::Accelerator(ui::VKEY_W,
+      ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN | ui::EF_SHIFT_DOWN)] =
+      kAccelNameToggleWebviewSignin;
 
   accel_map_[ui::Accelerator(ui::VKEY_LEFT, ui::EF_NONE)] =
       kAccelFocusPrev;