Initial work on making extensions work in incognito mode.

chrome/renderer/render_thread.cc

Index: chrome/renderer/render_thread.cc
diff --git a/chrome/renderer/render_thread.cc b/chrome/renderer/render_thread.cc
index 1f61c231f998d4c9053f02342a2a8a1013ab00c5..7914507b00d09de94892a2a80f84658d4fa73cb6 100644
--- a/chrome/renderer/render_thread.cc
+++ b/chrome/renderer/render_thread.cc
@@ -320,9 +320,9 @@ void RenderThread::OnSetZoomLevelForCurrentHost(const std::string& host,
 }
 
 void RenderThread::OnUpdateUserScripts(
-    base::SharedMemoryHandle scripts) {
+    base::SharedMemoryHandle scripts, bool only_inject_incognito) {
   DCHECK(base::SharedMemory::IsHandleValid(scripts)) << "Bad scripts handle";
-  user_script_slave_->UpdateScripts(scripts);
+  user_script_slave_->UpdateScripts(scripts, only_inject_incognito);
   UpdateActiveExtensions();
 }