Implement setSearchResults.

chrome/browser/ui/app_list/search/launcher_search/launcher_search_provider.cc

Index: chrome/browser/ui/app_list/search/launcher_search/launcher_search_provider.cc
diff --git a/chrome/browser/ui/app_list/search/launcher_search/launcher_search_provider.cc b/chrome/browser/ui/app_list/search/launcher_search/launcher_search_provider.cc
index 103c4b76bd8b8a0037618f4286aa1f37793c1449..34b326e6d1bfb6d258f0b3871acd4f93e75fa72b 100644
--- a/chrome/browser/ui/app_list/search/launcher_search/launcher_search_provider.cc
+++ b/chrome/browser/ui/app_list/search/launcher_search/launcher_search_provider.cc
@@ -36,6 +36,9 @@ void LauncherSearchProvider::Stop() {
   // order not to start query after Stop() is called.
   query_timer_.Stop();
 
+  // Clear all search results of the previous query.
+  extension_results_.clear();
+
   Service* service = Service::Get(profile_);
 
   // Since we delay queries and filter out empty string queries, it can happen
@@ -44,6 +47,28 @@ void LauncherSearchProvider::Stop() {
     service->OnQueryEnded();
 }
 
+void LauncherSearchProvider::SetSearchResults(
+    const extensions::ExtensionId& extension_id,
+    std::vector<linked_ptr<LauncherSearchResult>> extension_results) {
+  DCHECK(Service::Get(profile_)->IsQueryRunning());
+
+  // If it already has the results of this extension, delete it first.
+  if (ContainsKey(extension_results_, extension_id))
+    extension_results_.erase(extension_id);
+
+  // Adds this extension's results.
+  extension_results_.insert(std::make_pair(extension_id, extension_results));
+
+  // Updates results with other extension results.
+  ClearResults();
+  for (const auto& it : extension_results_) {
+    std::vector<linked_ptr<LauncherSearchResult>> results = it.second;

[Matt Giuca, 2015/04/10 13:29:13]

const std::vector<...>&

Or else it will copy the vector.

[yawano, 2015/04/13 07:30:52]

Done. Changed to use pointer here.

+    for (const auto& result : results) {

[Matt Giuca, 2015/04/10 13:29:13]

nit: Don't need curly braces.

[yawano, 2015/04/13 07:30:52]

Done.

+      Add(result->Duplicate());
+    }
+  }
+}
+
 void LauncherSearchProvider::DelayQuery(const base::Closure& closure) {
   base::TimeDelta delay =
       base::TimeDelta::FromMilliseconds(kLauncherSearchProviderQueryDelayInMs);
@@ -58,7 +83,7 @@ void LauncherSearchProvider::DelayQuery(const base::Closure& closure) {
 
 void LauncherSearchProvider::StartInternal(const base::string16& query) {
   if (!query.empty()) {
-    Service::Get(profile_)->OnQueryStarted(base::UTF16ToUTF8(query),
+    Service::Get(profile_)->OnQueryStarted(this, base::UTF16ToUTF8(query),
                                            kLauncherSearchProviderMaxResults);
   }
 }