extensions: Add ExtensionView interface.

chrome/browser/ui/gtk/extensions/extension_popup_gtk.cc

Index: chrome/browser/ui/gtk/extensions/extension_popup_gtk.cc
diff --git a/chrome/browser/ui/gtk/extensions/extension_popup_gtk.cc b/chrome/browser/ui/gtk/extensions/extension_popup_gtk.cc
index a7f5509dd7835087479f3d83662027027db5b282..03c76443b34904a78f8153842c4fde303a7c813b 100644
--- a/chrome/browser/ui/gtk/extensions/extension_popup_gtk.cc
+++ b/chrome/browser/ui/gtk/extensions/extension_popup_gtk.cc
@@ -48,7 +48,7 @@ ExtensionPopupGtk::ExtensionPopupGtk(Browser* browser,
       host_(host),
       anchor_(anchor),
       weak_factory_(this) {
-  host_->view()->SetContainer(this);
+  host_->GetExtensionView()->SetContainer(this);
   being_inspected_ = show_action == SHOW_AND_INSPECT;
 
   // If the host had somehow finished loading, then we'd miss the notification
@@ -184,7 +184,7 @@ void ExtensionPopupGtk::ShowPopup() {
       BubbleGtk::ARROW_LOCATION_TOP_LEFT;
   bubble_ = BubbleGtk::Show(anchor_,
                             NULL,
-                            host_->view()->native_view(),
+                            host_->GetExtensionView()->GetNativeView(),
                             arrow_location,
                             being_inspected_ ? 0 :
                                 BubbleGtk::POPUP_WINDOW | BubbleGtk::GRAB_INPUT,
@@ -198,6 +198,7 @@ void ExtensionPopupGtk::DestroyPopupWithoutResult() {
 
 gfx::Rect ExtensionPopupGtk::GetViewBounds() {
   GtkAllocation allocation;
-  gtk_widget_get_allocation(host_->view()->native_view(), &allocation);
+  gtk_widget_get_allocation(host_->GetExtensionView()->GetNativeView(),
+                            &allocation);
   return gfx::Rect(allocation);
 }