Use whether a query is from the app list to determine the RLZ parameter.

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/app_list/search/omnibox_provider.h"
 
 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
 #include "chrome/browser/autocomplete/autocomplete_controller.h"
 #include "chrome/browser/autocomplete/autocomplete_input.h"
 #include "chrome/browser/autocomplete/autocomplete_match.h"
+#include "chrome/browser/autocomplete/search_provider.h"
 #include "chrome/browser/ui/app_list/search/chrome_search_result.h"
 #include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/common/metrics/proto/omnibox_event.pb.h"
 #include "grit/theme_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace app_list {
 
 namespace {
 
@@ skipping 107 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(OmniboxResult);
 };
 
 }  // namespace
 
 OmniboxProvider::OmniboxProvider(Profile* profile)
     : profile_(profile),
       controller_(new AutocompleteController(
           profile,
           this,
-          AutocompleteClassifier::kDefaultOmniboxProviders)) {
+          AutocompleteClassifier::kDefaultOmniboxProviders &
+              ~AutocompleteProvider::TYPE_ZERO_SUGGEST)) {
+  controller_->search_provider()->set_in_app_list();
 }
 
 OmniboxProvider::~OmniboxProvider() {}
 
 void OmniboxProvider::Start(const base::string16& query) {
   controller_->Start(AutocompleteInput(query,
                                        base::string16::npos,
                                        base::string16(),
                                        GURL(),
                                        AutocompleteInput::INVALID_SPEC,
@@ skipping 19 matching lines @@
         new OmniboxResult(profile_, *it)).Pass());
   }
 }
 
 void OmniboxProvider::OnResultChanged(bool default_match_changed) {
   const AutocompleteResult& result = controller_->result();
   PopulateFromACResult(result);
 }
 
 }  // namespace app_list