Remove ResourceIdCanonicalizer from DriveServiceInterface

chrome/browser/drive/drive_service_interface.h

Index: chrome/browser/drive/drive_service_interface.h
diff --git a/chrome/browser/drive/drive_service_interface.h b/chrome/browser/drive/drive_service_interface.h
index 8478700d5ead4b63e590b1655571b76ecf514327..ae86fa83df4c7c1f401e86de8c955575b0a9137f 100644
--- a/chrome/browser/drive/drive_service_interface.h
+++ b/chrome/browser/drive/drive_service_interface.h
@@ -19,10 +19,6 @@ class Time;
 
 namespace drive {
 
-// Function which converts the given resource ID into the desired format.
-typedef base::Callback<std::string(
-    const std::string& resource_id)> ResourceIdCanonicalizer;
-
 // Observer interface for DriveServiceInterface.
 class DriveServiceObserver {
  public:
@@ -114,10 +110,6 @@ class DriveServiceInterface {
   // True if ready to send requests.
   virtual bool CanSendRequest() const = 0;
 
-  // Returns a function which converts the given resource ID into the desired
-  // format.
-  virtual ResourceIdCanonicalizer GetResourceIdCanonicalizer() const = 0;
-
   // Authentication service:
 
   // True if OAuth2 access token is retrieved and believed to be fresh.