Clarify the use of the term "Document" in gdata_wapi_operations.h.

chrome/browser/google_apis/gdata_wapi_service.cc

Index: chrome/browser/google_apis/gdata_wapi_service.cc
diff --git a/chrome/browser/google_apis/gdata_wapi_service.cc b/chrome/browser/google_apis/gdata_wapi_service.cc
index 8c8f42d5956fcca4a379ba02700ae82dd15790f2..e08d2be14a1b5628fcf89fb283a295a70669fda8 100644
--- a/chrome/browser/google_apis/gdata_wapi_service.cc
+++ b/chrome/browser/google_apis/gdata_wapi_service.cc
@@ -165,7 +165,7 @@ void GDataWapiService::GetDocumentEntry(
   DCHECK(!callback.is_null());
 
   runner_->StartOperationWithRetry(
-      new GetDocumentEntryOperation(operation_registry(),
+      new GetResourceEntryOperation(operation_registry(),
                                     url_request_context_getter_,
                                     url_generator_,
                                     resource_id,
@@ -234,7 +234,7 @@ void GDataWapiService::DeleteDocument(
   DCHECK(!callback.is_null());
 
   runner_->StartOperationWithRetry(
-      new DeleteDocumentOperation(operation_registry(),
+      new DeleteResourceOperation(operation_registry(),
                                   url_request_context_getter_,
                                   callback,
                                   document_url));
@@ -264,12 +264,12 @@ void GDataWapiService::CopyDocument(
   DCHECK(!callback.is_null());
 
   runner_->StartOperationWithRetry(
-      new CopyDocumentOperation(operation_registry(),
-                                url_request_context_getter_,
-                                url_generator_,
-                                callback,
-                                resource_id,
-                                new_name));
+      new CopyHostedDocumentOperation(operation_registry(),
+                                      url_request_context_getter_,
+                                      url_generator_,
+                                      callback,
+                                      resource_id,
+                                      new_name));
 }
 
 void GDataWapiService::RenameResource(