Hide experimental app list Google logo and custom launcher page when search engine is not Google.

chrome/browser/ui/app_list/start_page_service.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/start_page_service.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/memory/singleton.h"
 #include "base/metrics/user_metrics.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_piece.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/media/media_stream_infobar_delegate.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/hotword_service.h"
 #include "chrome/browser/search/hotword_service_factory.h"
+#include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/search_engines/ui_thread_search_terms_data.h"
 #include "chrome/browser/ui/app_list/speech_auth_helper.h"
 #include "chrome/browser/ui/app_list/speech_recognizer.h"
 #include "chrome/browser/ui/app_list/start_page_observer.h"
 #include "chrome/browser/ui/app_list/start_page_service_factory.h"
 #include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
+#include "components/search_engines/template_url_prepopulate_data.h"
+#include "components/search_engines/template_url_service.h"
 #include "components/ui/zoom/zoom_controller.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/speech_recognition_session_preamble.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
@@ skipping 218 matching lines @@
 StartPageService::StartPageService(Profile* profile)
     : profile_(profile),
       profile_destroy_observer_(new ProfileDestroyObserver(this)),
       state_(app_list::SPEECH_RECOGNITION_OFF),
       speech_button_toggled_manually_(false),
       speech_result_obtained_(false),
       webui_finished_loading_(false),
       speech_auth_helper_(new SpeechAuthHelper(profile, &clock_)),
       network_available_(true),
       microphone_available_(true),
+      search_engine_is_google_(true),

[Matt Giuca, 2015/02/17 08:07:45]

nit: Maybe init this to false? (Doesn't really matter since it is definitely
assigned later, so you may as well say false because that's the default bool
value.)

[calamity, 2015/02/18 01:42:34]

Done.

       weak_factory_(this) {
   // If experimental hotwording is enabled, then we're always "ready".
   // Transitioning into the "hotword recognizing" state is handled by the
   // hotword extension.
   if (HotwordService::IsExperimentalHotwordingEnabled()) {
     state_ = app_list::SPEECH_RECOGNITION_READY;
   }
 
   if (app_list::switches::IsExperimentalAppListEnabled())
     LoadContents();
 
+  TemplateURLService* template_url_service =
+      TemplateURLServiceFactory::GetForProfile(profile_);
+  const TemplateURL* default_provider =
+      template_url_service->GetDefaultSearchProvider();
+  search_engine_is_google_ =
+      TemplateURLPrepopulateData::GetEngineType(
+          *default_provider, template_url_service->search_terms_data()) ==
+      SEARCH_ENGINE_GOOGLE;
+
   network_change_observer_.reset(new NetworkChangeObserver(this));
 }
 
-StartPageService::~StartPageService() {}
+StartPageService::~StartPageService() {
+}
 
 void StartPageService::AddObserver(StartPageObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void StartPageService::RemoveObserver(StartPageObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void StartPageService::OnMicrophoneChanged(bool available) {
@@ skipping 256 matching lines @@
       ui::PAGE_TRANSITION_AUTO_TOPLEVEL,
       std::string());
 }
 
 void StartPageService::UnloadContents() {
   contents_.reset();
   webui_finished_loading_ = false;
 }
 
 void StartPageService::FetchDoodleJson() {
+  if (!search_engine_is_google_)
+    return;
+
   GURL::Replacements replacements;
   replacements.SetPathStr(kDoodleJsonPath);
 
   GURL google_base_url(UIThreadSearchTermsData(profile_).GoogleBaseURLValue());
   GURL doodle_url = google_base_url.ReplaceComponents(replacements);
   doodle_fetcher_.reset(
       net::URLFetcher::Create(0, doodle_url, net::URLFetcher::GET, this));
   doodle_fetcher_->SetRequestContext(profile_->GetRequestContext());
   doodle_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES);
   doodle_fetcher_->Start();
@@ skipping 37 matching lines @@
 
   // Check for a new doodle.
   content::BrowserThread::PostDelayedTask(
       content::BrowserThread::UI, FROM_HERE,
       base::Bind(&StartPageService::FetchDoodleJson,
                  weak_factory_.GetWeakPtr()),
       recheck_delay);
 }
 
 }  // namespace app_list