Update view manager to support content handling.

mojo/examples/window_manager/debug_panel.cc

Index: mojo/examples/window_manager/debug_panel.cc
diff --git a/mojo/examples/window_manager/debug_panel.cc b/mojo/examples/window_manager/debug_panel.cc
index 1648d0c53fa230c45b31f11d50d433c65ad9697a..022695d132ebe166a2ad5c331c4701208d4f7d1e 100644
--- a/mojo/examples/window_manager/debug_panel.cc
+++ b/mojo/examples/window_manager/debug_panel.cc
@@ -35,7 +35,6 @@ DebugPanel::DebugPanel(Delegate* delegate, View* view)
           base::ASCIIToUTF16("Source window"), kNavigationTargetGroupId)),
       navigation_target_default_(new views::RadioButton(
           base::ASCIIToUTF16("Default"), kNavigationTargetGroupId)),
-      next_color_(0),
       colored_square_(new views::BlueButton(
           this, base::ASCIIToUTF16("Local nav test"))),
       close_last_(new views::BlueButton(
@@ -117,8 +116,7 @@ void DebugPanel::Layout(views::View* view) {
 
 void DebugPanel::ButtonPressed(views::Button* sender, const ui::Event& event) {
   if (sender == colored_square_) {
-    Navigate(base::StringPrintf("mojo://mojo_embedded_app/%x",
-                                kColors[next_color_ % arraysize(kColors)]));
+    Navigate("mojo://mojo_embedded_app/");
     next_color_++;
   } else if (sender == close_last_) {
     delegate_->CloseTopWindow();