Allow AppSearchProvider to provide recommendations.

chrome/browser/ui/app_list/search/search_controller.cc

Index: chrome/browser/ui/app_list/search/search_controller.cc
diff --git a/chrome/browser/ui/app_list/search/search_controller.cc b/chrome/browser/ui/app_list/search/search_controller.cc
index 86de7d01403ebfb21902570492cf3aa8bab5268f..0cbbf9e2e485a92b658bb3c4a707360c1db3080d 100644
--- a/chrome/browser/ui/app_list/search/search_controller.cc
+++ b/chrome/browser/ui/app_list/search/search_controller.cc
@@ -91,6 +91,23 @@ void SearchController::Init() {
   }
 }
 
+void SearchController::FetchRecommendations() {
+  Stop();
+
+  list_controller_->OnSearchStarted();
+
+  dispatching_query_ = true;
+  for (Providers::iterator it = providers_.begin();
+       it != providers_.end();
+       ++it) {
+    (*it)->FetchRecommendations();
+  }
+  dispatching_query_ = false;
+
+  OnResultsChanged();
+  InitiateStopTimer();
+}
+
 void SearchController::Start() {
   Stop();
 
@@ -108,7 +125,10 @@ void SearchController::Start() {
   dispatching_query_ = false;
 
   OnResultsChanged();
+  InitiateStopTimer();
+}
 
+void SearchController::InitiateStopTimer() {
   // Maximum time (in milliseconds) to wait to the search providers to finish.
   const int kStopTimeMS = 1500;

[Matt Giuca, 2014/07/22 04:31:07]

nit: This constant should be more visible -- at least at the top of this file,
and perhaps in app_list_constants.

[calamity, 2014/07/22 07:24:04]

Done.

   stop_timer_.Start(FROM_HERE,