Bug 560166, add link drop handler to installer and reenable test, r=gavin

browser/installer/package-manifest.in

@@ -326,6 +326,7 @@
 @BINPATH@/components/nsBadCertHandler.js
 @BINPATH@/components/nsFormAutoComplete.js
 @BINPATH@/components/contentSecurityPolicy.js
+@BINPATH@/components/contentAreaDropListener.js
 #ifdef XP_MACOSX
 @BINPATH@/components/libalerts_s.dylib
 #endif

toolkit/content/tests/chrome/Makefile.in

@@ -97,8 +97,8 @@ _TEST_FILES = 	findbar_window.xul \
 		window_screenPosSize.xul \
 		test_titlebar.xul \
 		window_titlebar.xul \
-#		test_browser_drop.xul \
-#		window_browser_drop.xul \
+		test_browser_drop.xul \
+		window_browser_drop.xul \
 		$(NULL)
 
 # test_panel_focus.xul won't work if the Full Keyboard Access preference is set to