https://bugs.webkit.org/show_bug.cgi?id=48775

Reviewed by Adam Roben.

* PluginProcess/PluginControllerProxy.cpp:
(WebKit::PluginControllerProxy::windowScriptNPObject):
Ask for an NPObjectProxy for the window script NPObject.

* PluginProcess/WebProcessConnection.cpp:
(WebKit::WebProcessConnection::WebProcessConnection):
Initialize m_npRemoteObjectMap.

* Shared/Plugins/NPObjectMessageReceiver.cpp:
(WebKit::NPObjectMessageReceiver::create):
Add a create member function that takes an NPObject.

(WebKit::NPObjectMessageReceiver::NPObjectMessageReceiver):
Retain the NPObject.

(WebKit::NPObjectMessageReceiver::~NPObjectMessageReceiver):
Release the NPObject.

* Shared/Plugins/NPRemoteObjectMap.cpp:
(WebKit::generateNPObjectID):
Generate a unique 64-bit NPObject ID.

(WebKit::NPRemoteObjectMap::getOrCreateNPObjectProxy):
Add stub.

(WebKit::NPRemoteObjectMap::registerNPObject):
Create a NPObjectMessageReceiver and add it to the map.

* WebKit2.xcodeproj/project.pbxproj:
Set the correct target for NPRuntime related files.

* WebProcess/Plugins/PluginProcessConnection.cpp:
(WebKit::PluginProcessConnection::PluginProcessConnection):
Initialize m_npRemoteObjectMap

* WebProcess/Plugins/PluginProxy.cpp:
(WebKit::PluginProxy::getWindowScriptNPObject):
Ask the real plug-in controller for the window script NPObject and register it.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@71051 268f45cc-cd09-0410-ab3c-d52691b4dbfc