Use Drive v2 API: enable behind --enable-drive-api flag

chrome/browser/chromeos/gdata/gdata_operations.h

Index: chrome/browser/chromeos/gdata/gdata_operations.h
diff --git a/chrome/browser/chromeos/gdata/gdata_operations.h b/chrome/browser/chromeos/gdata/gdata_operations.h
index 1466ae8d9af8fd94f59f2f725b68e48d985e5a1b..e9f8234b2b23f9662565d39a3cf92ba04e405fce 100644
--- a/chrome/browser/chromeos/gdata/gdata_operations.h
+++ b/chrome/browser/chromeos/gdata/gdata_operations.h
@@ -168,8 +168,7 @@ class EntryActionOperation : public UrlFetchOperationBase {
  protected:
   // Overridden from UrlFetchOperationBase.
   virtual GURL GetURL() const OVERRIDE;
-  virtual bool ProcessURLFetchResults(const net::URLFetcher* source)
-      OVERRIDE;
+  virtual bool ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
   virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
 
   const GURL& document_url() const { return document_url_; }
@@ -196,8 +195,7 @@ class GetDataOperation : public UrlFetchOperationBase {
 
  protected:
   // Overridden from UrlFetchOperationBase.
-  virtual bool ProcessURLFetchResults(const net::URLFetcher* source)
-      OVERRIDE;
+  virtual bool ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
   virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
 
  private:
@@ -264,7 +262,8 @@ class GetAccountMetadataOperation : public GetDataOperation {
  public:
   GetAccountMetadataOperation(GDataOperationRegistry* registry,
                               Profile* profile,
-                              const GetDataCallback& callback);
+                              const GetDataCallback& callback,
+                              bool use_drive_api);
   virtual ~GetAccountMetadataOperation();
 
  protected:
@@ -272,6 +271,9 @@ class GetAccountMetadataOperation : public GetDataOperation {
   virtual GURL GetURL() const OVERRIDE;
 
  private:
+  // True if Drive v2 API is used.
+  bool use_drive_api_;
+
   DISALLOW_COPY_AND_ASSIGN(GetAccountMetadataOperation);
 };