Introduce ability to register callback with GoogleURLTracker

chrome/browser/search_engines/search_provider_install_data_unittest.cc

 // Copyright (c) 2012 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 <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 111 matching lines @@
  public:
   SearchProviderInstallDataTest();
 
   virtual void SetUp() OVERRIDE;
   virtual void TearDown() OVERRIDE;
 
  protected:
   TemplateURL* AddNewTemplateURL(const std::string& url,
                                  const base::string16& keyword);
 
+  // Sets the Google base URL to |base_url| and runs the IO thread for
+  // |SearchProviderInstallData| to process the update.
+  void SetGoogleBaseURLAndProcessOnIOThread(GURL base_url);
+
   TemplateURLServiceTestUtil util_;
 
   // Provides the search provider install state on the I/O thread. It must be
   // deleted on the I/O thread, which is why it isn't a scoped_ptr.
   SearchProviderInstallData* install_data_;
 
   // A mock RenderProcessHost that the SearchProviderInstallData will scope its
   // lifetime to.
   scoped_ptr<content::MockRenderProcessHost> process_;
 
@@ skipping 33 matching lines @@
     const base::string16& keyword) {
   TemplateURLData data;
   data.short_name = keyword;
   data.SetKeyword(keyword);
   data.SetURL(url);
   TemplateURL* t_url = new TemplateURL(util_.profile(), data);
   util_.model()->Add(t_url);
   return t_url;
 }
 
+void SearchProviderInstallDataTest::SetGoogleBaseURLAndProcessOnIOThread(
+    GURL base_url) {
+  util_.SetGoogleBaseURL(base_url);
+  BrowserThread::PostTask(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(&SearchProviderInstallData::OnGoogleURLChange,
+                 base::Unretained(install_data_),
+                 base_url.spec()));
+
+  // Wait for the I/O thread to process the update notification.
+  base::RunLoop().RunUntilIdle();
+}
+
 // Actual tests ---------------------------------------------------------------
 
 TEST_F(SearchProviderInstallDataTest, GetInstallState) {
   // Set up the database.
   util_.ChangeModelToLoadState();
   std::string host = "www.unittest.com";
   AddNewTemplateURL("http://" + host + "/path", base::ASCIIToUTF16("unittest"));
 
   // Wait for the changes to be saved.
   base::RunLoop().RunUntilIdle();
@@ skipping 40 matching lines @@
   TestGetInstallState test_get_install_state(install_data_);
   test_get_install_state.RunTests(host, host2);
 }
 
 TEST_F(SearchProviderInstallDataTest, GoogleBaseUrlChange) {
   TestGetInstallState test_get_install_state(install_data_);
 
   // Set up the database.
   util_.ChangeModelToLoadState();
   std::string google_host = "w.com";
-  util_.SetGoogleBaseURL(GURL("http://" + google_host + "/"));
-  // Wait for the I/O thread to process the update notification.
-  base::RunLoop().RunUntilIdle();
+  SetGoogleBaseURLAndProcessOnIOThread(GURL("http://" + google_host + "/"));
 
   AddNewTemplateURL("{google:baseURL}?q={searchTerms}",
                     base::ASCIIToUTF16("t"));
   TemplateURL* default_url =
       AddNewTemplateURL("http://d.com/", base::ASCIIToUTF16("d"));
   util_.model()->SetUserSelectedDefaultSearchProvider(default_url);
 
   // Wait for the changes to be saved.
   base::RunLoop().RunUntilIdle();
 
   // Verify the search providers install state (with no default set).
   test_get_install_state.RunTests(google_host, std::string());
 
   // Change the Google base url.
   google_host = "foo.com";
-  util_.SetGoogleBaseURL(GURL("http://" + google_host + "/"));
-  // Wait for the I/O thread to process the update notification.
-  base::RunLoop().RunUntilIdle();
+  SetGoogleBaseURLAndProcessOnIOThread(GURL("http://" + google_host + "/"));
 
   // Verify that the change got picked up.
   test_get_install_state.RunTests(google_host, std::string());
 }