Introduce //components/user_prefs, use to eliminate c/b/prefs dependency in Autofill.

chrome/browser/autofill/autofill_download.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 "chrome/browser/autofill/autofill_download.h"
 
 #include <algorithm>
 #include <ostream>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
 #include "chrome/browser/autofill/autofill_download_url.h"
 #include "chrome/browser/autofill/autofill_metrics.h"
 #include "chrome/browser/autofill/autofill_xml_parser.h"
 #include "chrome/browser/autofill/form_structure.h"
 #include "chrome/common/pref_names.h"
+#include "components/user_prefs/user_prefs.h"
 #include "content/public/browser/browser_context.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_fetcher.h"
 #include "third_party/libjingle/source/talk/xmllite/xmlparser.h"
 
 using content::BrowserContext;
 
 namespace {
@@ skipping 20 matching lines @@
                                                  Observer* observer)
     : browser_context_(context),
       observer_(observer),
       max_form_cache_size_(kMaxFormCacheSize),
       next_query_request_(base::Time::Now()),
       next_upload_request_(base::Time::Now()),
       positive_upload_rate_(0),
       negative_upload_rate_(0),
       fetcher_id_for_unittest_(0) {
   DCHECK(observer_);
-  PrefService* preferences =
-      PrefServiceFromBrowserContext(browser_context_);
+  PrefService* preferences = components::UserPrefs::Get(browser_context_);
   positive_upload_rate_ =
       preferences->GetDouble(prefs::kAutofillPositiveUploadRate);
   negative_upload_rate_ =
       preferences->GetDouble(prefs::kAutofillNegativeUploadRate);
 }
 
 AutofillDownloadManager::~AutofillDownloadManager() {
   STLDeleteContainerPairFirstPointers(url_fetchers_.begin(),
                                       url_fetchers_.end());
 }
@@ skipping 68 matching lines @@
 double AutofillDownloadManager::GetNegativeUploadRate() const {
   return negative_upload_rate_;
 }
 
 void AutofillDownloadManager::SetPositiveUploadRate(double rate) {
   if (rate == positive_upload_rate_)
     return;
   positive_upload_rate_ = rate;
   DCHECK_GE(rate, 0.0);
   DCHECK_LE(rate, 1.0);
-  PrefService* preferences = PrefServiceFromBrowserContext(
-      browser_context_);
+  PrefService* preferences = components::UserPrefs::Get(browser_context_);
   preferences->SetDouble(prefs::kAutofillPositiveUploadRate, rate);
 }
 
 void AutofillDownloadManager::SetNegativeUploadRate(double rate) {
   if (rate == negative_upload_rate_)
     return;
   negative_upload_rate_ = rate;
   DCHECK_GE(rate, 0.0);
   DCHECK_LE(rate, 1.0);
-  PrefService* preferences = PrefServiceFromBrowserContext(
-      browser_context_);
+  PrefService* preferences = components::UserPrefs::Get(browser_context_);
   preferences->SetDouble(prefs::kAutofillNegativeUploadRate, rate);
 }
 
 bool AutofillDownloadManager::StartRequest(
     const std::string& form_xml,
     const FormRequestData& request_data) {
   net::URLRequestContextGetter* request_context =
       browser_context_->GetRequestContext();
   DCHECK(request_context);
   GURL request_url;
@@ skipping 142 matching lines @@
         SetPositiveUploadRate(new_positive_upload_rate);
         SetNegativeUploadRate(new_negative_upload_rate);
       }
 
       observer_->OnUploadedPossibleFieldTypes();
     }
   }
   delete it->first;
   url_fetchers_.erase(it);
 }