Terminal: Added "Save as defaults" back.

* It's still convenient to have.
* Furthermore, the distinction between when settings are stored is hard
  to grasp otherwise.
* Plus, adopting the current window size is now much more straight forward.

src/apps/terminal/TermConst.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2013, Haiku.
+ * Copyright 2001-2015, Haiku.
  * Copyright (c) 2003-4 Kian Duffy <myob@users.sourceforge.net>
  * Copyright (C) 1998,99 Kazuho Okui and Takashi Murai.
  *
@@ -71,6 +71,7 @@ static const uint32 ONETHREETWOTWENTYFIVE				= 'hunv';
 static const uint32 FULLSCREEN							= 'fscr';
 
 static const uint32 MSG_FONT_CHANGED					= 'fntc';
+static const uint32 MSG_SAVE_AS_DEFAULT					= 'sadf';
 static const uint32 MSG_CHECK_CHILDREN					= 'ckch';
 static const uint32 MSG_REMOVE_RESIZE_VIEW_IF_NEEDED	= 'rmrv';
 static const uint32 MSG_TERMINAL_BUFFER_CHANGED			= 'bufc';

src/apps/terminal/TermWindow.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2007-2013, Haiku, Inc. All rights reserved.
+ * Copyright 2007-2015, Haiku, Inc. All rights reserved.
  * Copyright (c) 2004 Daniel Furrer <assimil8or@users.sourceforge.net>
  * Copyright (c) 2003-2004 Kian Duffy <myob@users.sourceforge.net>
  * Copyright (C) 1998,99 Kazuho Okui and Takashi Murai.
@@ -523,10 +523,10 @@ TermWindow::_SetupMenu()
 			.AddItem(windowSize)
 			.AddItem(fEncodingMenu)
 			.AddItem(fFontSizeMenu)
+			.AddItem(B_TRANSLATE("Save as default"), MSG_SAVE_AS_DEFAULT)
 			.AddSeparator()
 			.AddItem(B_TRANSLATE("Settings" B_UTF8_ELLIPSIS), MENU_PREF_OPEN)
-		.End()
-	;
+		.End();
 
 	AddChild(fMenuBar);
 
@@ -935,6 +935,15 @@ TermWindow::MessageReceived(BMessage *message)
 			_ActiveTermView()->Invalidate();
 			break;
 		}
+		case MSG_SAVE_AS_DEFAULT:
+		{
+			BPath path;
+			if (PrefHandler::GetDefaultPath(path) == B_OK) {
+				PrefHandler::Default()->SaveAsText(path.Path(),
+					PREFFILE_MIMETYPE);
+			}
+			break;
+		}
 
 		case MENU_PAGE_SETUP:
 			_DoPageSetup();