Get rid of RequestRegistry (part 2): remove cancellation methods.

chrome/browser/drive/gdata_wapi_service.cc

Index: chrome/browser/drive/gdata_wapi_service.cc
diff --git a/chrome/browser/drive/gdata_wapi_service.cc b/chrome/browser/drive/gdata_wapi_service.cc
index db90f6fe7b77090f133a658df58ab8750529b9bf..8c8209c1b6bfdf7ffb3979c97b96ebfd4c0200e5 100644
--- a/chrome/browser/drive/gdata_wapi_service.cc
+++ b/chrome/browser/drive/gdata_wapi_service.cc
@@ -145,16 +145,6 @@ bool GDataWapiService::CanSendRequest() const {
   return HasRefreshToken();
 }
 
-void GDataWapiService::CancelAll() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  sender_->CancelAll();
-}
-
-bool GDataWapiService::CancelForFilePath(const base::FilePath& file_path) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  return sender_->request_registry()->CancelForFilePath(file_path);
-}
-
 std::string GDataWapiService::CanonicalizeResourceId(
     const std::string& resource_id) const {
   return resource_id;