Add GetPluginPath() to npobject_util to avoid content/plugin/ include from npobject_stub.cc

content/common/npobject_stub.cc

Index: content/common/npobject_stub.cc
diff --git a/content/common/npobject_stub.cc b/content/common/npobject_stub.cc
index af0f33a3eff907796039186eab54b56cf1bfa3b3..e582ea0ad872e4ae0f92d4d57052dad6805e1874 100644
--- a/content/common/npobject_stub.cc
+++ b/content/common/npobject_stub.cc
@@ -5,16 +5,14 @@
 #include "content/common/npobject_stub.h"
 
 #include "content/common/content_client.h"
+#include "content/common/np_channel_base.h"
 #include "content/common/npobject_util.h"
 #include "content/common/plugin_messages.h"
-#include "content/plugin/plugin_thread.h"
 #include "third_party/npapi/bindings/npapi.h"
 #include "third_party/npapi/bindings/npruntime.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h"
 #include "webkit/plugins/npapi/plugin_constants_win.h"
 
-class NPChannelBase;
-
 using WebKit::WebBindings;
 
 NPObjectStub::NPObjectStub(
@@ -243,7 +241,7 @@ void NPObjectStub::OnSetProperty(const NPIdentifier_Param& name,
     if (npobject_->_class->setProperty) {
 #if defined(OS_WIN)
       static std::wstring filename = StringToLowerASCII(
-          PluginThread::current()->plugin_path().BaseName().value());
+          GetPluginPath().BaseName().value());
       static NPIdentifier fullscreen =
           WebBindings::getStringIdentifier("fullScreen");
       if (filename == webkit::npapi::kNewWMPPlugin && id == fullscreen) {