Add some missing documentation to idl files

Change-Id: Id5a3a6d4cc08f55cd7ff31614248ce203b2e4e8d
Reviewed-on: https://gerrit.libreoffice.org/29146Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Tested-by: Stephan Bergmann <sbergman@redhat.com>

offapi/com/sun/star/frame/TitleChangedEvent.idl

@@ -24,11 +24,11 @@
 
  module com {  module sun {  module star {  module frame {
 
-/** todo document me
+/** Contains the information about a changed title.
  */
 struct TitleChangedEvent : com::sun::star::lang::EventObject
 {
-    /** todo document me
+    /** The new title
      */
     string Title;
 };

offapi/com/sun/star/frame/XTitleChangeBroadcaster.idl

@@ -25,15 +25,15 @@
 
  module com {  module sun {  module star {  module frame {
 
-/** todo document me
+/** Allows to register for title changed events.
  */
 interface XTitleChangeBroadcaster : com::sun::star::uno::XInterface
 {
-    /** todo document me
+    /** Add a listener
      */
     void addTitleChangeListener ( [in] com::sun::star::frame::XTitleChangeListener xListener );
 
-    /** todo document me
+    /** Remove a listener
      */
     void removeTitleChangeListener ( [in] com::sun::star::frame::XTitleChangeListener xListener );
 };

offapi/com/sun/star/frame/XTitleChangeListener.idl

@@ -25,11 +25,11 @@
 
  module com {  module sun {  module star {  module frame {
 
-/** todo document me
+/** Allows to receive notifications when the frame title changes
  */
 interface XTitleChangeListener : com::sun::star::lang::XEventListener
 {
-    /** todo document me
+    /** The frame title has changed
      */
     void titleChanged ( [in] TitleChangedEvent aEvent );
 };

offapi/com/sun/star/modules.idl

@@ -103,7 +103,7 @@ module configuration {
 
 };
 
-/// TODO: what is this?
+/// Common user interface elements
 module cui {};
 
 /// Clipboard and Drag&Drop interfaces.
@@ -338,7 +338,7 @@ module sdbcx {};
 /// cryptographic interfaces.
 module security {};
 
-/// TODO: what is this?
+/// Setup specific interfaces
 module setup {};
 
 /// Spreadsheet specific interfaces.