Give TextEditorActionHandler an explicit parent and unify usage.

The action handler implicitly passed ownership to ICore, which is non-
to the action handler. We now consistently create the action handler in
the editor factory, give ownership to the editor factory, and don't hold
a reference to it.

Change-Id: I4372f8de966e3ceff87c06c5528c6b54522c1d57
Reviewed-by: David Schulz <david.schulz@digia.com>

src/plugins/android/androidmanifesteditorfactory.h

@@ -32,8 +32,6 @@
 
 #include <coreplugin/editormanager/ieditorfactory.h>
 
-namespace TextEditor { class TextEditorActionHandler; }
-
 namespace Android {
 namespace Internal {
 
@@ -45,9 +43,6 @@ public:
     explicit AndroidManifestEditorFactory(QObject *parent = 0);
 
     Core::IEditor *createEditor(QWidget *parent);
-
-private:
-    TextEditor::TextEditorActionHandler *m_actionHandler;
 };
 
 } // namespace Internal