[fsp] Remove the unused streaming field.

chrome/browser/chromeos/extensions/file_manager/private_api_drive.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_drive.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/drive/drive_integration_service.h"
 #include "chrome/browser/chromeos/extensions/file_manager/private_api_util.h"
@@ skipping 79 matching lines @@
   }
   properties->is_hosted.reset(
       new bool(file_specific_info.is_hosted_document()));
   properties->content_mime_type.reset(
       new std::string(file_specific_info.content_mime_type()));
 
   properties->is_pinned.reset(
       new bool(file_specific_info.cache_state().is_pinned()));
   properties->is_present.reset(
       new bool(file_specific_info.cache_state().is_present()));
+
+  if (file_specific_info.cache_state().is_present()) {
+    properties->is_available_offline.reset(new bool(true));
+  } else if (file_specific_info.is_hosted_document() &&
+             file_specific_info.has_document_extension()) {
+    const std::string file_extension = file_specific_info.document_extension();
+    // What's available offline? See the 'Web' column at:
+    // http://support.google.com/drive/answer/1628467
+    properties->is_available_offline.reset(
+        new bool(file_extension == ".gdoc" || file_extension == ".gdraw" ||
+                 file_extension == ".gsheet" || file_extension == ".gslides"));

[yoshiki, 2014/09/01 02:41:04]

(maybe out of this patch's work)

I think we should check it with mime type, rather than file extension.
https://developers.google.com/drive/web/mime-types

[mtomasz, 2014/09/01 02:43:53]

Good idea. Let me do it in a separate CL.

+  } else {
+    properties->is_available_offline.reset(new bool(false));
+  }
+
+  properties->is_available_when_metered.reset(
+      new bool(file_specific_info.cache_state().is_present() ||
+               file_specific_info.is_hosted_document()));
 }
 
 // Creates entry definition list for (metadata) search result info list.
 template <class T>
 void ConvertSearchResultInfoListToEntryDefinitionList(
     Profile* profile,
     const std::string& extension_id,
     const std::vector<T>& search_result_info_list,
     const EntryDefinitionListCallback& callback) {
   FileDefinitionList file_definition_list;
@@ skipping 865 matching lines @@
     return;
   }
 
   const std::string url = download_url_ + "?access_token=" + access_token;
   SetResult(new base::StringValue(url));
 
   SendResponse(true);
 }
 
 }  // namespace extensions