[Chrome OS] Change layout of the launcher.

ui/app_list/search/mixer.h

Index: ui/app_list/search/mixer.h
diff --git a/ui/app_list/search/mixer.h b/ui/app_list/search/mixer.h
index e0aa3bd43507665d8ab9936b22a402c4e38fb806..9629d5bb45dfb6296d4b815757dc6e25a344754f 100644
--- a/ui/app_list/search/mixer.h
+++ b/ui/app_list/search/mixer.h
@@ -44,8 +44,11 @@ class APP_LIST_EXPORT Mixer {
   // Associates a provider with a mixer group.
   void AddProviderToGroup(size_t group_id, SearchProvider* provider);
 
-  // Collects the results, sorts and publishes them.
-  void MixAndPublish(bool is_voice_query, const KnownResults& known_results);
+  // Collects the results, sorts and publishes them. If |is_empty_query| equals
+  // true, the results are to be shown on the launcher start page.
+  void MixAndPublish(bool is_empty_query,
+                     bool is_voice_query,
+                     const KnownResults& known_results);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(test::MixerTest, Publish);