Prepare HistoryProvider for componentization

components/omnibox/base_search_provider.cc

 // Copyright 2014 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 "components/omnibox/base_search_provider.h"
 
 #include "base/i18n/case_conversion.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/metrics/proto/omnibox_event.pb.h"
@@ skipping 63 matching lines @@
       this);
 }
 
 // BaseSearchProvider ---------------------------------------------------------
 
 // static
 const int BaseSearchProvider::kDefaultProviderURLFetcherID = 1;
 const int BaseSearchProvider::kKeywordProviderURLFetcherID = 2;
 const int BaseSearchProvider::kDeletionURLFetcherID = 3;
 
-BaseSearchProvider::BaseSearchProvider(
-    TemplateURLService* template_url_service,
-    scoped_ptr<AutocompleteProviderClient> client,
-    AutocompleteProvider::Type type)
+BaseSearchProvider::BaseSearchProvider(TemplateURLService* template_url_service,
+                                       AutocompleteProviderClient* client,
+                                       AutocompleteProvider::Type type)
     : AutocompleteProvider(type),
       template_url_service_(template_url_service),
-      client_(client.Pass()),
+      client_(client),
       field_trial_triggered_(false),
       field_trial_triggered_in_session_(false) {
 }
 
 // static
 bool BaseSearchProvider::ShouldPrefetch(const AutocompleteMatch& match) {
   return match.GetAdditionalInfo(kShouldPrefetchKey) == kTrue;
 }
 
 // static
@@ skipping 373 matching lines @@
 }
 
 void BaseSearchProvider::OnDeletionComplete(
     bool success, SuggestionDeletionHandler* handler) {
   RecordDeletionResult(success);
   SuggestionDeletionHandlers::iterator it = std::find(
       deletion_handlers_.begin(), deletion_handlers_.end(), handler);
   DCHECK(it != deletion_handlers_.end());
   deletion_handlers_.erase(it);
 }