Fix README.chromium and add LICENSE for third_party/mozilla.

third_party/mozilla/README.chromium

-This directory contains files needed for mozilla interfaces required
-for the new Java Plugin APIs.
+Name: Cocoa extension code from Camino
+URL: http://caminobrowser.org/
 
-Definitions of frozen interfaces are copied from Gecko SDK 
-http://releases.mozilla.org/pub/mozilla.org/xulrunner/releases/1.8.0.4/sdk/gecko-sdk-win32-msvc-1.8.0.4.zip
+Description:
+  This directory contains the following files come from (Mozilla) Camino
+  (src/camino/src/extensions):
 
-nscore.h
-nsError.h
-nsID.h
-nsISupports.h
-nsISupportsBase.h
-nsrootidl.h
-prcpucfg.h
-prlong.h
-prtime.h
-prtypes.h
-xpcom-config.h
+    NSPasteboard+Utils.h/mm
+    NSScreen+Utils.h/m
+    NSString+Utils.h/m
+    NSURL+Utils.h/m
+    NSWorkspace+Utils.h/m
 
-The prtypes.h file was modified to include "base/basictypes.h" instead of
-mozilla's protypes.h to avoid type clashes.
-
-nsISupports.h was modified to remove inclusion of nsISupportsUtils.h to avoid
-pulling in unnecessary headers and definitions.
-
-Definitions of remaining interfaces are auto generated during compilation of
-Mozilla source code. For convenience, these are copied from:
-http://publicsvn.songbirdnest.com/browser/trunk/dependencies/win32/mozilla/debug/include/plugin?rev=1
-
-nsICookieStorage.h
-nsIPluginManager.h
-nsIPluginManager2.h
-nsplugindefs.h
-nspluginroot.h
-
-The following files come from mozilla/camino and are not part of the Gecko SDK:
-
-NSPasteboard+Utils.h/m
-NSScreen+Utils.h/m
-NSString+Utils.h/m
-NSURL+Utils.h/m
-NSWorkspace+Utils.h/m
-
-NSURL+Utils.m was modified to use non-deprecated Cocoa APIs to allow compilation
-on future versions of Mac OS X.
+Local modifications:
+  NSURL+Utils.m was modified to use non-deprecated Cocoa APIs to allow
+  compilation on future versions of Mac OS X.