Support cross-profile copy between Chrome OS Google Drive folders.

chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.cc

Index: chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.cc
diff --git a/chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.cc b/chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.cc
index a71993f8b7cb319c58d93d690daf6c8360d2dc63..367e9e9ae57be7ff758bae31d2e325dd7b941b96 100644
--- a/chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.cc
+++ b/chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.cc
@@ -9,6 +9,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/drive/fileapi/async_file_util.h"
+#include "chrome/browser/chromeos/drive/fileapi/fileapi_worker.h"
 #include "chrome/browser/chromeos/drive/fileapi/webkit_file_stream_reader_impl.h"
 #include "chrome/browser/chromeos/drive/fileapi/webkit_file_stream_writer_impl.h"
 #include "chrome/browser/profiles/profile.h"
@@ -26,8 +27,7 @@ namespace drive {
 FileSystemBackendDelegate::FileSystemBackendDelegate(

[kinaba, 2014/02/04 02:48:48]

Probably whole the class can be removed and merged to FileSystemBackend. I'll do
it separately later and concentrate the current patch to switching the profile
source from profile_id_ to url.

     content::BrowserContext* browser_context)

[hashimoto, 2014/02/04 05:44:36]

nit: browser_context and profile_id_ are not needed?

[kinaba, 2014/02/04 06:10:59]

Done.

Not needed and since I thought holding profile_id_ is the whole reason
FileSystemBackendDelegate existed, I'm thinking about removing them all at once
along with the removal of the Delegate class. But I changed my mind that the
class is still giving a separation between general filesystem and Drive
filesystem and hence can be kept. For now, I'll just remove the unneeded fields.

     : profile_id_(Profile::FromBrowserContext(browser_context)),
-      async_file_util_(new internal::AsyncFileUtil(
-          base::Bind(&util::GetFileSystemByProfileId, profile_id_))) {
+      async_file_util_(new internal::AsyncFileUtil) {
   DCHECK(profile_id_);
 }
 
@@ -56,7 +56,7 @@ FileSystemBackendDelegate::CreateFileStreamReader(
 
   return scoped_ptr<webkit_blob::FileStreamReader>(
       new internal::WebkitFileStreamReaderImpl(
-          base::Bind(&util::GetFileSystemByProfileId, profile_id_),
+          base::Bind(&fileapi_internal::GetFileSystemFromUrl, url),
           context->default_file_task_runner(),
           file_path, offset, expected_modification_time));
 }
@@ -76,7 +76,7 @@ FileSystemBackendDelegate::CreateFileStreamWriter(
 
   return scoped_ptr<fileapi::FileStreamWriter>(
       new internal::WebkitFileStreamWriterImpl(
-          base::Bind(&util::GetFileSystemByProfileId, profile_id_),
+          base::Bind(&fileapi_internal::GetFileSystemFromUrl, url),
           context->default_file_task_runner(),file_path, offset));
 }