drive: Rename 'gdata' namespace to 'drive' in chrome/browser/chromeos/drive

chrome/browser/chromeos/drive/document_entry_conversion.h

Index: chrome/browser/chromeos/drive/document_entry_conversion.h
diff --git a/chrome/browser/chromeos/drive/document_entry_conversion.h b/chrome/browser/chromeos/drive/document_entry_conversion.h
index 992764b69a8b717590df1060c61e2f3446f61036..e378f2f22413059b2484d5befe162a42a10b417a 100644
--- a/chrome/browser/chromeos/drive/document_entry_conversion.h
+++ b/chrome/browser/chromeos/drive/document_entry_conversion.h
@@ -12,14 +12,17 @@
 class GURL;
 
 namespace gdata {
-
 class DocumentEntry;
+}
+
+namespace drive {
+
 class DriveEntryProto;
 
-// Converts a DocumentEntry into a DriveEntryProto.
+// Converts a gdata::DocumentEntry into a DriveEntryProto.
 DriveEntryProto ConvertDocumentEntryToDriveEntryProto(
-    const DocumentEntry& document_entry);
+    const gdata::DocumentEntry& document_entry);
 
-}  // namespace gdata
+}  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_DOCUMENT_ENTRY_CONVERSION_H_