Add GetChangelist operation for Drive V2.

chrome/browser/chromeos/gdata/gdata_operations.cc

Index: chrome/browser/chromeos/gdata/gdata_operations.cc
diff --git a/chrome/browser/chromeos/gdata/gdata_operations.cc b/chrome/browser/chromeos/gdata/gdata_operations.cc
index 72692f92a8c72f542a01d1e7d884b3116ce69000..6e32d05510835d9c0321b2466ca9f55b3a235b9e 100644
--- a/chrome/browser/chromeos/gdata/gdata_operations.cc
+++ b/chrome/browser/chromeos/gdata/gdata_operations.cc
@@ -155,11 +155,13 @@ namespace gdata {
 
 GetDocumentsOperation::GetDocumentsOperation(
     GDataOperationRegistry* registry,
+    const GURL& url,
     int start_changestamp,
     const std::string& search_string,
     const std::string& directory_resource_id,
     const GetDataCallback& callback)
     : GetDataOperation(registry, callback),
+      override_url_(url),
       start_changestamp_(start_changestamp),
       search_string_(search_string),
       directory_resource_id_(directory_resource_id) {
@@ -167,10 +169,6 @@ GetDocumentsOperation::GetDocumentsOperation(
 
 GetDocumentsOperation::~GetDocumentsOperation() {}
 
-void GetDocumentsOperation::SetUrl(const GURL& url) {
-  override_url_ = url;
-}
-
 GURL GetDocumentsOperation::GetURL() const {
   int max_docs = search_string_.empty() ? kMaxDocumentsPerFeed :
                                           kMaxDocumentsPerSearchFeed;