Implement setSearchResults.

chrome/browser/chromeos/launcher_search_provider/service.cc

Index: chrome/browser/chromeos/launcher_search_provider/service.cc
diff --git a/chrome/browser/chromeos/launcher_search_provider/service.cc b/chrome/browser/chromeos/launcher_search_provider/service.cc
index eadb11d82e05e7c9b2e2c472f7203f55c99c94ed..cc9dd314f3c861939bbe272b6e998c3d8ebc9a14 100644
--- a/chrome/browser/chromeos/launcher_search_provider/service.cc
+++ b/chrome/browser/chromeos/launcher_search_provider/service.cc
@@ -4,8 +4,9 @@
 
 #include "chrome/browser/chromeos/launcher_search_provider/service.h"
 
+#include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chromeos/launcher_search_provider/service_factory.h"
-#include "chrome/common/extensions/api/launcher_search_provider.h"
+#include "chrome/browser/ui/app_list/search/launcher_search/launcher_search_provider.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/extension_set.h"
 #include "extensions/common/permissions/permissions_data.h"
@@ -22,6 +23,7 @@ Service::Service(Profile* profile,
                  extensions::ExtensionRegistry* extension_registry)
     : profile_(profile),
       extension_registry_(extension_registry),
+      provider_(nullptr),
       query_id_(0),
       is_query_running_(false) {
 }
@@ -34,9 +36,12 @@ Service* Service::Get(content::BrowserContext* context) {
   return ServiceFactory::Get(context);
 }
 
-void Service::OnQueryStarted(const std::string& query, const int max_result) {
+void Service::OnQueryStarted(app_list::LauncherSearchProvider* provider,
+                             const std::string& query,
+                             const int max_result) {
   DCHECK(!is_query_running_);
   is_query_running_ = true;
+  provider_ = provider;
 
   ++query_id_;
 
@@ -56,6 +61,7 @@ void Service::OnQueryStarted(const std::string& query, const int max_result) {
 
 void Service::OnQueryEnded() {
   DCHECK(is_query_running_);
+  provider_ = nullptr;
 
   extensions::EventRouter* event_router =
       extensions::EventRouter::Get(profile_);
@@ -73,6 +79,30 @@ void Service::OnQueryEnded() {
   is_query_running_ = false;
 }
 
+void Service::SetSearchResults(
+    const extensions::Extension* extension,
+    const std::string& query_id,
+    std::vector<linked_ptr<
+        extensions::api::launcher_search_provider::SearchResult>> results) {
+  // If query is not running or query_id is different from current query id,
+  // discard the results.
+  if (!is_query_running_ || query_id != std::to_string(query_id_))
+    return;
+
+  // Set search results to provider.
+  DCHECK(provider_);
+  std::vector<linked_ptr<app_list::LauncherSearchResult>> search_results;
+  for (const auto& result : results) {
+    app_list::LauncherSearchResult* search_result =
+        new app_list::LauncherSearchResult(
+            result->item_id, result->icon_url.Pass(), result->relevance,

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

It looks like you are going to trust relevance values given by the extension.
You should clip them to the range [0, 4] here to make sure extensions can't give
themselves ridiculous or negative values.

(You could also do this in the LauncherSearchResult constructor, but I think it
makes sense to filter the input at this earlier point.)

You should add a kMaxSearchResultScore = 4 because we'll be seeing this value
used in a couple of places.

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

Done.

+            profile_, extension);
+    search_result->set_title(base::UTF8ToUTF16(result->title));
+    search_results.push_back(make_linked_ptr(search_result));
+  }
+  provider_->SetSearchResults(extension->id(), search_results);
+}
+
 bool Service::IsQueryRunning() const {
   return is_query_running_;
 }