Add request header on gdata operation for testing ETag match.

chrome/browser/chromeos/drive/mock_drive_service.h

Index: chrome/browser/chromeos/drive/mock_drive_service.h
diff --git a/chrome/browser/chromeos/drive/mock_drive_service.h b/chrome/browser/chromeos/drive/mock_drive_service.h
index 32b91295c183c0a8153746309b3883854fabee16..6c31feea207b4f7e11f54c4f5b4695ea9a9d0dee 100644
--- a/chrome/browser/chromeos/drive/mock_drive_service.h
+++ b/chrome/browser/chromeos/drive/mock_drive_service.h
@@ -44,14 +44,16 @@ class MockDriveService : public DriveServiceInterface {
                void(const gdata::GetDataCallback& callback));
   MOCK_METHOD1(GetApplicationInfo,
                void(const gdata::GetDataCallback& callback));
-  MOCK_METHOD2(DeleteDocument,
+  MOCK_METHOD3(DeleteDocument,
                void(const GURL& document_url,
+                    const std::string& etag,
                     const gdata::EntryActionCallback& callback));
-  MOCK_METHOD5(DownloadDocument,
+  MOCK_METHOD6(DownloadDocument,
                void(const FilePath& virtual_path,
                     const FilePath& local_cache_path,
                     const GURL& content_url,
                     DocumentExportFormat format,
+                    const std::string& etag,
                     const gdata::DownloadActionCallback& callback));
   MOCK_METHOD3(CopyDocument, void(const std::string& resource_id,
                                   const FilePath::StringType& new_name,
@@ -73,10 +75,11 @@ class MockDriveService : public DriveServiceInterface {
                void(const GURL& parent_content_url,
                     const FilePath::StringType& directory_name,
                     const gdata::GetDataCallback& callback));
-  MOCK_METHOD5(DownloadFile,
+  MOCK_METHOD6(DownloadFile,
                void(const FilePath& virtual_path,
                     const FilePath& local_cache_path,
                     const GURL& content_url,
+                    const std::string& etag,
                     const gdata::DownloadActionCallback&
                     donwload_action_callback,
                     const gdata::GetContentCallback& get_content_callback));
@@ -132,6 +135,7 @@ class MockDriveService : public DriveServiceInterface {
 
   // Will call |callback| with HTTP_SUCCESS and the |document_url|.
   void DeleteDocumentStub(const GURL& document_url,
+                          const std::string& etag,
                           const gdata::EntryActionCallback& callback);
 
   // Will call |callback| with HTTP_SUCCESS, the given URL, and the host+path
@@ -140,6 +144,7 @@ class MockDriveService : public DriveServiceInterface {
                             const FilePath& local_tmp_path,
                             const GURL& content_url,
                             DocumentExportFormat format,
+                            const std::string& etag,
                             const gdata::DownloadActionCallback& callback);
 
   // Will call |callback| with HTTP_SUCCESS and the current value of
@@ -178,6 +183,7 @@ class MockDriveService : public DriveServiceInterface {
       const FilePath& virtual_path,
       const FilePath& local_tmp_path,
       const GURL& content_url,
+      const std::string& etag,
       const gdata::DownloadActionCallback& download_action_callback,
       const gdata::GetContentCallback& get_content_callback);