Random cleanup for c/b/cros/extensions/file_manager.

chrome/browser/chromeos/extensions/file_manager/private_api_file_system.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/extensions/file_manager/private_api_file_system.h"
 
 #include <sys/statvfs.h>
 
 #include "base/posix/eintr_wrapper.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 213 matching lines @@
   file_system_context->operation_runner()->Cancel(
       operation_id, base::Bind(&OnCopyCancelled));
 }
 
 }  // namespace
 
 void FileBrowserPrivateRequestFileSystemFunction::DidFail(
     base::File::Error error_code) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
-  error_ = base::StringPrintf("File error %d", static_cast<int>(error_code));
+  SetError(base::StringPrintf("File error %d", static_cast<int>(error_code)));
   SendResponse(false);
 }
 
 bool FileBrowserPrivateRequestFileSystemFunction::
     SetupFileSystemAccessPermissions(
         scoped_refptr<fileapi::FileSystemContext> file_system_context,
         int child_id,
         scoped_refptr<const extensions::Extension> extension) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
@@ skipping 269 matching lines @@
 bool FileBrowserPrivateStartCopyFunction::RunImpl() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   using  extensions::api::file_browser_private::StartCopy::Params;
   const scoped_ptr<Params> params(Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
 
   if (params->source_url.empty() || params->parent.empty() ||
       params->new_name.empty()) {
     // Error code in format of DOMError.name.
-    error_ = "EncodingError";
+    SetError("EncodingError");
     return false;
   }
 
   scoped_refptr<fileapi::FileSystemContext> file_system_context =
       file_manager::util::GetFileSystemContextForRenderViewHost(
           GetProfile(), render_view_host());
 
   fileapi::FileSystemURL source_url(
       file_system_context->CrackURL(GURL(params->source_url)));
   fileapi::FileSystemURL destination_url(file_system_context->CrackURL(
       GURL(params->parent + "/" + params->new_name)));
 
   if (!source_url.is_valid() || !destination_url.is_valid()) {
     // Error code in format of DOMError.name.
-    error_ = "EncodingError";
+    SetError("EncodingError");
     return false;
   }
 
   return BrowserThread::PostTaskAndReplyWithResult(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&StartCopyOnIOThread,
                  GetProfile(),
                  file_system_context,
                  source_url,
@@ skipping 24 matching lines @@
   // We don't much take care about the result of cancellation.
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&CancelCopyOnIOThread, file_system_context, params->copy_id));
   SendResponse(true);
   return true;
 }
 
 }  // namespace extensions