Part of docshell/webshell landing prep work. The doc loader is being re-factored into the uri loader.

api synch of changes to nsIURIContentListener
r=travis

docshell/base/nsDSURIContentListener.cpp

@@ -22,6 +22,7 @@
 
 #include "nsDocShell.h"
 #include "nsDSURIContentListener.h"
+#include "nsIChannel.h"
 
 //*****************************************************************************
 //***    nsDSURIContentListener: Object Management
@@ -103,6 +104,39 @@ NS_IMETHODIMP nsDSURIContentListener::CanHandleContent(const char* aContentType,
    return NS_OK;
 }
 
+NS_IMETHODIMP
+nsDSURIContentListener::GetParentContentListener(nsIURIContentListener**
+   aParentListener)
+{
+   *aParentListener = mParentContentListener;
+   NS_IF_ADDREF(*aParentListener);
+   return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDSURIContentListener::SetParentContentListener(nsIURIContentListener* 
+   aParentListener)
+{
+   // Weak Reference, don't addref
+   mParentContentListener = aParentListener;
+   return NS_OK;
+}
+
+NS_IMETHODIMP 
+nsDSURIContentListener::GetLoadCookie(nsISupports ** aLoadCookie)
+{
+  *aLoadCookie = mLoadCookie;
+  NS_IF_ADDREF(*aLoadCookie);
+  return NS_OK;
+}
+
+NS_IMETHODIMP 
+nsDSURIContentListener::SetLoadCookie(nsISupports * aLoadCookie)
+{
+  mLoadCookie = aLoadCookie;
+  return NS_OK;
+}
+
 //*****************************************************************************
 // nsDSURIContentListener: Helpers
 //*****************************************************************************   
@@ -135,20 +169,6 @@ nsDocShell* nsDSURIContentListener::DocShell()
    return mDocShell;
 }
 
-void nsDSURIContentListener::GetParentContentListener(nsIURIContentListener**
-   aParentListener)
-{
-   *aParentListener = mParentContentListener;
-   NS_IF_ADDREF(*aParentListener);
-}
-
-void nsDSURIContentListener::SetParentContentListener(nsIURIContentListener* 
-   aParentListener)
-{
-   // Weak Reference, don't addref
-   mParentContentListener = aParentListener;
-}  
-
 void nsDSURIContentListener::GetPresContext(nsIPresContext** aPresContext)
 {
    *aPresContext = mPresContext;

docshell/base/nsDSURIContentListener.h

@@ -43,8 +43,6 @@ protected:
 
    void DocShell(nsDocShell* aDocShell);
    nsDocShell* DocShell();
-   void GetParentContentListener(nsIURIContentListener** aParentListener);
-   void SetParentContentListener(nsIURIContentListener* aParentListener);
    void GetPresContext(nsIPresContext** aPresContext);
    void SetPresContext(nsIPresContext* aPresContext);
    PRBool HandleInCurrentDocShell(const char* aContentType, 
@@ -54,6 +52,7 @@ protected:
 protected:
    nsDocShell*                      mDocShell;
    nsCOMPtr<nsIPresContext>         mPresContext;
+   nsCOMPtr<nsISupports>            mLoadCookie; // the load cookie associated with the window context.
 
    nsIURIContentListener*            mParentContentListener;  // Weak Reference
 };

docshell/base/nsDocShell.cpp

@@ -28,6 +28,7 @@
 #include "nsIDOMDocument.h"
 #include "nsIDOMElement.h"
 #include "nsIDocumentViewer.h"
+#include "nsIDocumentLoaderFactory.h"
 #include "nsIDeviceContext.h"
 #include "nsCURILoader.h"
 #include "nsLayoutCID.h"
@@ -147,13 +148,17 @@ NS_IMETHODIMP nsDocShell::LoadURIVia(nsIURI* aUri,
    // first, open a channel for the url
    nsCOMPtr<nsIChannel> channel;
    nsCOMPtr<nsIInterfaceRequestor> capabilities (do_QueryInterface(NS_STATIC_CAST(nsIDocShell *, this)));
-   nsCOMPtr<nsILoadGroup> loadGroup(do_QueryInterface(mLoadCookie));
+
+   // we need to get the load group from our load cookie so we can pass it into open uri...
+   nsCOMPtr<nsILoadGroup> loadGroup;
+   NS_ENSURE_SUCCESS(uriLoader->GetLoadGroupForContext(NS_STATIC_CAST(nsISupports *, (nsIDocShell *) this), getter_AddRefs(loadGroup)),
+                     NS_ERROR_FAILURE);
+
    NS_ENSURE_SUCCESS(NS_OpenURI(getter_AddRefs(channel), aUri, loadGroup, capabilities), NS_ERROR_FAILURE);
 
 
    NS_ENSURE_SUCCESS(uriLoader->OpenURIVia(channel, nsIURILoader::viewNormal, nsnull, 
-      NS_STATIC_CAST(nsIDocShell*, this), mLoadCookie, 
-      getter_AddRefs(mLoadCookie), aAdapterBinding), NS_ERROR_FAILURE);
+      NS_STATIC_CAST(nsIDocShell*, this), aAdapterBinding), NS_ERROR_FAILURE);
 
    return NS_OK;
 }
@@ -356,8 +361,7 @@ NS_IMETHODIMP nsDocShell::GetParentURIContentListener(nsIURIContentListener**
    NS_ENSURE_ARG_POINTER(aParent);
    NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
 
-   mContentListener->GetParentContentListener(aParent);
-   return NS_OK;
+   return mContentListener->GetParentContentListener(aParent);
 }
 
 NS_IMETHODIMP nsDocShell::SetParentURIContentListener(nsIURIContentListener*
@@ -365,8 +369,7 @@ NS_IMETHODIMP nsDocShell::SetParentURIContentListener(nsIURIContentListener*
 {
    NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
 
-   mContentListener->SetParentContentListener(aParent);
-   return NS_OK;
+   return mContentListener->SetParentContentListener(aParent);
 }
 
 NS_IMETHODIMP nsDocShell::GetPrefs(nsIPref** aPrefs)