drive: Add the local largest changestamp to chrome:drive-internals

chrome/browser/ui/webui/chromeos/drive_internals_ui.cc

Index: chrome/browser/ui/webui/chromeos/drive_internals_ui.cc
diff --git a/chrome/browser/ui/webui/chromeos/drive_internals_ui.cc b/chrome/browser/ui/webui/chromeos/drive_internals_ui.cc
index 047c7abd58cae3e117741a458ee9e38a8087cbbb..93de88e358ac77603314f6ac78dbfcb85b446385 100644
--- a/chrome/browser/ui/webui/chromeos/drive_internals_ui.cc
+++ b/chrome/browser/ui/webui/chromeos/drive_internals_ui.cc
@@ -16,6 +16,7 @@
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/drive_cache.h"
 #include "chrome/browser/chromeos/drive/drive_file_system_interface.h"
+#include "chrome/browser/chromeos/drive/drive_resource_metadata.h"
 #include "chrome/browser/chromeos/drive/drive_system_service.h"
 #include "chrome/browser/google_apis/auth_service.h"
 #include "chrome/browser/google_apis/drive_api_parser.h"
@@ -237,9 +238,8 @@ void DriveInternalsWebUIHandler::OnGetAccountMetadata(
                                about_resource->quota_bytes_total());
     account_metadata.SetDouble("account-quota-used",
                                about_resource->quota_bytes_used());
-    account_metadata.SetString(
-        "account-largest-changestamp",
-        base::Int64ToString(about_resource->largest_change_id()));
+    account_metadata.SetDouble("account-largest-changestamp-remote",
+                               about_resource->largest_change_id());
 
     // TODO(haruki): Fill installed Drive apps for Drive API.
     // http://crbug.com/154241
@@ -251,9 +251,8 @@ void DriveInternalsWebUIHandler::OnGetAccountMetadata(
     account_metadata.SetDouble("account-quota-total",
                                feed->quota_bytes_total());
     account_metadata.SetDouble("account-quota-used", feed->quota_bytes_used());
-    account_metadata.SetString(
-        "account-largest-changestamp",
-        base::Int64ToString(feed->largest_changestamp()));
+    account_metadata.SetDouble("account-largest-changestamp-remote",
+                               feed->largest_changestamp());
 
     base::ListValue* installed_apps = new base::ListValue();
     for (size_t i = 0; i < feed->installed_apps().size(); ++i) {
@@ -269,6 +268,13 @@ void DriveInternalsWebUIHandler::OnGetAccountMetadata(
     account_metadata.Set("installed-apps", installed_apps);
   }
 
+  // Add the local largest chargestamp.
+  const drive::DriveResourceMetadata* resource_metadata =
+      GetSystemService()->file_system()->GetResourceMetadata();
+  const int64 largest_changestamp = resource_metadata->largest_changestamp();
+  account_metadata.SetDouble("account-largest-changestamp-local",
+                             largest_changestamp);
+
   web_ui()->CallJavascriptFunction("updateAccountMetadata", account_metadata);
 }