gdata: Export PlatformFileInfo/Proto conversion functions

These functions will be used in an upcoming patch, when
we extract file info from GDataFileProto/GDataDirectoryProto
(i.e. in some places, we need PlatFormFileInfo).

BUG=chromium-os:30251
TEST=GDataFileSystemTest.CachedFeedLoading

Review URL: https://chromiumcodereview.appspot.com/10270027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@134679 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/gdata/gdata_files.cc

@@ -632,16 +632,35 @@ void GDataRootDirectory::RemoveTemporaryFilesFromCacheMap() {
 
 // Convert to/from proto.
 
+// static
+void GDataEntry::ConvertProtoToPlatformFileInfo(
+    const PlatformFileInfoProto& proto,
+    base::PlatformFileInfo* file_info) {
+  file_info->size = proto.size();
+  file_info->is_directory = proto.is_directory();
+  file_info->is_symbolic_link = proto.is_symbolic_link();
+  file_info->last_modified = base::Time::FromInternalValue(
+      proto.last_modified());
+  file_info->last_accessed = base::Time::FromInternalValue(
+      proto.last_accessed());
+  file_info->creation_time = base::Time::FromInternalValue(
+      proto.creation_time());
+}
+
+// static
+void GDataEntry::ConvertPlatformFileInfoToProto(
+    const base::PlatformFileInfo& file_info,
+    PlatformFileInfoProto* proto) {
+  proto->set_size(file_info.size);
+  proto->set_is_directory(file_info.is_directory);
+  proto->set_is_symbolic_link(file_info.is_symbolic_link);
+  proto->set_last_modified(file_info.last_modified.ToInternalValue());
+  proto->set_last_accessed(file_info.last_accessed.ToInternalValue());
+  proto->set_creation_time(file_info.creation_time.ToInternalValue());
+}
+
 void GDataEntry::FromProto(const GDataEntryProto& proto) {
-  file_info_.size = proto.file_info().size();
-  file_info_.is_directory = proto.file_info().is_directory();
-  file_info_.is_symbolic_link = proto.file_info().is_symbolic_link();
-  file_info_.last_modified = base::Time::FromInternalValue(
-      proto.file_info().last_modified());
-  file_info_.last_accessed = base::Time::FromInternalValue(
-      proto.file_info().last_accessed());
-  file_info_.creation_time = base::Time::FromInternalValue(
-      proto.file_info().creation_time());
+  ConvertProtoToPlatformFileInfo(proto.file_info(), &file_info_);
 
   // Don't copy from proto.file_name() as file_name_ is computed in
   // SetFileNameFromTitle().
@@ -654,16 +673,7 @@ void GDataEntry::FromProto(const GDataEntryProto& proto) {
 }
 
 void GDataEntry::ToProto(GDataEntryProto* proto) const {
-  PlatformFileInfoProto* proto_file_info = proto->mutable_file_info();
-  proto_file_info->set_size(file_info_.size);
-  proto_file_info->set_is_directory(file_info_.is_directory);
-  proto_file_info->set_is_symbolic_link(file_info_.is_symbolic_link);
-  proto_file_info->set_last_modified(
-      file_info_.last_modified.ToInternalValue());
-  proto_file_info->set_last_accessed(
-      file_info_.last_accessed.ToInternalValue());
-  proto_file_info->set_creation_time(
-      file_info_.creation_time.ToInternalValue());
+  ConvertPlatformFileInfoToProto(file_info_, proto->mutable_file_info());
 
   // The file_name field is used in GetFileInfoByPathAsync(). As shown in
   // FromProto(), the value is discarded when deserializing from proto.

chrome/browser/chromeos/gdata/gdata_files.h

@@ -33,6 +33,7 @@ class GDataEntryProto;
 class GDataFileProto;
 class GDataDirectoryProto;
 class GDataRootDirectoryProto;
+class PlatformFileInfoProto;
 
 // Directory content origin.
 enum ContentOrigin {
@@ -81,6 +82,16 @@ class GDataEntry {
   static scoped_ptr<GDataEntry> FromProtoString(
       const std::string& serialized_proto);
 
+  // Converts the proto representation to the platform file.
+  static void ConvertProtoToPlatformFileInfo(
+      const PlatformFileInfoProto& proto,
+      base::PlatformFileInfo* file_info);
+
+  // Converts the platform file info to the proto representation.
+  static void ConvertPlatformFileInfoToProto(
+      const base::PlatformFileInfo& file_info,
+      PlatformFileInfoProto* proto);
+
   // Converts to/from proto.
   void FromProto(const GDataEntryProto& proto);
   void ToProto(GDataEntryProto* proto) const;