Fix search engine automation hooks to work with multiple profiles.

chrome/browser/automation/testing_automation_provider.cc

Index: chrome/browser/automation/testing_automation_provider.cc
diff --git a/chrome/browser/automation/testing_automation_provider.cc b/chrome/browser/automation/testing_automation_provider.cc
index a7ecae85de2080d06b2bb6046459f1fc7f3025f0..ca97c5a56e9c8d7d76f1e7e88266844df67e1fe1 100644
--- a/chrome/browser/automation/testing_automation_provider.cc
+++ b/chrome/browser/automation/testing_automation_provider.cc
@@ -3261,7 +3261,7 @@ void TestingAutomationProvider::LoadSearchEngineInfo(
     return;
   }
   url_model->AddObserver(new AutomationProviderSearchEngineObserver(
-      this, reply_message));
+      this, browser->profile(), reply_message));
   url_model->Load();
 }
 
@@ -3330,12 +3330,12 @@ void TestingAutomationProvider::AddOrEditSearchEngine(
       return;
     }
     url_model->AddObserver(new AutomationProviderSearchEngineObserver(
-        this, reply_message));
+        this, browser->profile(), reply_message));
     controller->ModifyTemplateURL(template_url, new_title, new_keyword,
                                   new_ref_url);
   } else {
     url_model->AddObserver(new AutomationProviderSearchEngineObserver(
-        this, reply_message));
+        this, browser->profile(), reply_message));
     controller->AddTemplateURL(new_title, new_keyword, new_ref_url);
   }
 }
@@ -3365,11 +3365,11 @@ void TestingAutomationProvider::PerformActionOnSearchEngine(
   }
   if (action == "delete") {
     url_model->AddObserver(new AutomationProviderSearchEngineObserver(
-      this, reply_message));
+      this, browser->profile(), reply_message));
     url_model->Remove(template_url);
   } else if (action == "default") {
     url_model->AddObserver(new AutomationProviderSearchEngineObserver(
-      this, reply_message));
+      this, browser->profile(), reply_message));
     url_model->SetDefaultSearchProvider(template_url);
   } else {
     AutomationJSONReply(this, reply_message).SendError(