Revert 170458 - Hide new Autofill Popup on Main Widget Resize or Move.

chrome/browser/ui/views/autofill/autofill_popup_view_views.cc

Index: chrome/browser/ui/views/autofill/autofill_popup_view_views.cc
===================================================================
--- chrome/browser/ui/views/autofill/autofill_popup_view_views.cc	(revision 170484)
+++ chrome/browser/ui/views/autofill/autofill_popup_view_views.cc	(working copy)
@@ -45,11 +45,6 @@
   if (GetWidget())
     GetWidget()->Close();
   web_contents_->GetRenderViewHost()->RemoveKeyboardListener(this);
-
-  views::Widget* browser_widget =
-      views::Widget::GetTopLevelWidgetForNativeView(
-          web_contents_->GetView()->GetTopLevelNativeWindow());
-  browser_widget->RemoveObserver(this);
 }
 
 void AutofillPopupViewViews::OnPaint(gfx::Canvas* canvas) {
@@ -66,11 +61,6 @@
   }
 }
 
-void AutofillPopupViewViews::OnWidgetBoundsChanged(views::Widget* widget,
-                                                 const gfx::Rect& new_bounds) {
-  external_delegate()->HideAutofillPopup();
-}
-
 bool AutofillPopupViewViews::HandleKeyPressEvent(ui::KeyEvent* event) {
   switch (event->key_code()) {
     case ui::VKEY_UP:
@@ -86,7 +76,11 @@
       SetSelectedLine(autofill_values().size() - 1);
       return true;
     case ui::VKEY_ESCAPE:
-       external_delegate()->HideAutofillPopup();
+      if (external_delegate()) {
+        external_delegate()->HideAutofillPopup();
+      } else {
+        Hide();
+      }
       return true;
     case ui::VKEY_DELETE:
       return event->IsShiftDown() && RemoveSelectedLine();
@@ -115,13 +109,6 @@
     gfx::Rect client_area;
     web_contents_->GetContainerBounds(&client_area);
     widget->SetBounds(client_area);
-
-    // Setup an observer to check for when the browser moves or changes size,
-    // since the popup should always be hidden in those cases.
-    views::Widget* browser_widget =
-        views::Widget::GetTopLevelWidgetForNativeView(
-            web_contents_->GetView()->GetTopLevelNativeWindow());
-    browser_widget->AddObserver(this);
   }
 
   set_border(views::Border::CreateSolidBorder(kBorderThickness, kBorderColor));