Implement people search.

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

Index: chrome/browser/ui/app_list/search/mixer_unittest.cc
diff --git a/chrome/browser/ui/app_list/search/mixer_unittest.cc b/chrome/browser/ui/app_list/search/mixer_unittest.cc
index 592d7c8c087e2d8d6864dd57254bfa666e83b720..7680ca008a6f847584fd0258196f8b43f22f4b01 100644
--- a/chrome/browser/ui/app_list/search/mixer_unittest.cc
+++ b/chrome/browser/ui/app_list/search/mixer_unittest.cc
@@ -84,12 +84,14 @@ class MixerTest : public testing::Test {
     providers_.push_back(new TestSearchProvider("app"));
     providers_.push_back(new TestSearchProvider("omnibox"));
     providers_.push_back(new TestSearchProvider("webstore"));
+    providers_.push_back(new TestSearchProvider("people"));
 
     mixer_.reset(new Mixer(results_.get()));
     mixer_->Init();
     mixer_->AddProviderToGroup(Mixer::MAIN_GROUP, providers_[0]);
     mixer_->AddProviderToGroup(Mixer::OMNIBOX_GROUP, providers_[1]);
     mixer_->AddProviderToGroup(Mixer::WEBSTORE_GROUP, providers_[2]);
+    mixer_->AddProviderToGroup(Mixer::PEOPLE_GROUP, providers_[3]);
   }
 
   void RunQuery() {