Reviewed by Jeremy Orlow.

        JObjectWrapper should be moved to its own file
        https://bugs.webkit.org/show_bug.cgi?id=55384

        No new tests, refactoring only.

        * Android.v8bindings.mk:
        * WebCore.gypi:
        * bridge/jni/v8/JNIBridgeV8.cpp:
        (JavaField::JavaField):
        * bridge/jni/v8/JNIBridgeV8.h:
        * bridge/jni/v8/JavaInstanceV8.cpp:
        (JavaInstance::JavaInstance):
        * bridge/jni/v8/JavaInstanceV8.h:
        * bridge/jni/v8/JobjectWrapper.cpp: Copied from Source/WebCore/bridge/jni/v8/JNIBridgeV8.h.
        (JobjectWrapper::JobjectWrapper):
        (JobjectWrapper::~JobjectWrapper):
        * bridge/jni/v8/JobjectWrapper.h: Copied from Source/WebCore/bridge/jni/v8/JNIBridgeV8.h.
        (JSC::Bindings::JobjectWrapper::instance):
        (JSC::Bindings::JobjectWrapper::setInstance):
        (JSC::Bindings::JobjectWrapper::ref):
        (JSC::Bindings::JobjectWrapper::deref):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@80103 268f45cc-cd09-0410-ab3c-d52691b4dbfc