Remove unused BrowserBubble remnants.

chrome/browser/automation/automation_provider_win.cc

Index: chrome/browser/automation/automation_provider_win.cc
diff --git a/chrome/browser/automation/automation_provider_win.cc b/chrome/browser/automation/automation_provider_win.cc
index c2de6ab99c58c1dc6e3c42554f5fc11053b8df31..7397ca0bec56bec4376def5bf2f1625b4bd843fe 100644
--- a/chrome/browser/automation/automation_provider_win.cc
+++ b/chrome/browser/automation/automation_provider_win.cc
@@ -343,9 +343,7 @@ void AutomationProvider::ConnectExternalTab(
 
 void AutomationProvider::OnBrowserMoved(int tab_handle) {
   ExternalTabContainer* external_tab = GetExternalTabForHandle(tab_handle);
-  if (external_tab) {
-    external_tab->WindowMoved();
-  } else {
+  if (!external_tab) {
     DLOG(WARNING) <<
       "AutomationProvider::OnBrowserMoved called with invalid tab handle.";
   }