Embeds offline voice recognizer plugin and its manager to app-list start page.

ui/app_list/views/apps_grid_view.cc

Index: ui/app_list/views/apps_grid_view.cc
diff --git a/ui/app_list/views/apps_grid_view.cc b/ui/app_list/views/apps_grid_view.cc
index 09d056f92b9eb42f6542fef1b915c55c84726fe8..d40540f45982515cd91a9a60d18461a938bf6f6e 100644
--- a/ui/app_list/views/apps_grid_view.cc
+++ b/ui/app_list/views/apps_grid_view.cc
@@ -258,6 +258,8 @@ AppsGridView::AppsGridView(AppsGridViewDelegate* delegate,
         new views::WebView(start_page_contents->GetBrowserContext());
     start_page_view_->SetWebContents(start_page_contents);
     AddChildView(start_page_view_);
+    start_page_contents->GetWebUI()->CallJavascriptFunction(
+        "appList.startPage.onAppListShown");
   }
 }
 
@@ -275,6 +277,11 @@ AppsGridView::~AppsGridView() {
 
   if (apps_)
     apps_->RemoveObserver(this);
+
+  if (start_page_view_) {
+    start_page_view_->GetWebContents()->GetWebUI()->CallJavascriptFunction(
+        "appList.startPage.onAppListHidden");
+  }
 }
 
 void AppsGridView::SetLayout(int icon_size, int cols, int rows_per_page) {