Use the BrowserActionsContainer for new extension bubbles in the toolbar redesign

When using the extension toolbar redesign, we should use the
BrowserActionsContainer for any "new extension" bubbles, as
all extensions will have an icon there. Use this in lieu of
the location bar or a page action.

BUG=422117

Review URL: https://codereview.chromium.org/648553002

Cr-Commit-Position: refs/heads/master@{#299115}

chrome/browser/ui/views/extensions/extension_installed_bubble_view.cc

@@ -33,6 +33,7 @@
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "extensions/common/extension.h"
+#include "extensions/common/feature_switch.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/render_text.h"
@@ -529,7 +530,8 @@ bool ExtensionInstalledBubbleView::MaybeShowNow() {
       BrowserView::GetBrowserViewForBrowser(bubble_.browser());
 
   views::View* reference_view = NULL;
-  if (bubble_.type() == bubble_.BROWSER_ACTION) {
+  if (bubble_.type() == bubble_.BROWSER_ACTION ||
+      extensions::FeatureSwitch::extension_action_redesign()->IsEnabled()) {
     BrowserActionsContainer* container =
         browser_view->GetToolbarView()->browser_actions();
     if (container->animating())
@@ -595,7 +597,8 @@ gfx::Rect ExtensionInstalledBubbleView::GetAnchorRect() const {
 }
 
 void ExtensionInstalledBubbleView::WindowClosing() {
-  if (bubble_.extension() && bubble_.type() == bubble_.PAGE_ACTION) {
+  if (bubble_.extension() && bubble_.type() == bubble_.PAGE_ACTION &&
+      !extensions::FeatureSwitch::extension_action_redesign()->IsEnabled()) {
     BrowserView* browser_view =
         BrowserView::GetBrowserViewForBrowser(bubble_.browser());
     browser_view->GetLocationBarView()->SetPreviewEnabledPageAction(