Fix for WebView accessible resources.

extensions/renderer/dispatcher.cc

Index: extensions/renderer/dispatcher.cc
diff --git a/extensions/renderer/dispatcher.cc b/extensions/renderer/dispatcher.cc
index 34324e2be1bf10a27c375337e720fd03c5a85029..9cb4a91ced2032091ed8e4f81f379b09ce92031d 100644
--- a/extensions/renderer/dispatcher.cc
+++ b/extensions/renderer/dispatcher.cc
@@ -840,6 +840,8 @@ bool Dispatcher::OnControlMessageReceived(const IPC::Message& message) {
   IPC_MESSAGE_HANDLER(ExtensionMsg_SetScriptingWhitelist,
                       OnSetScriptingWhitelist)
   IPC_MESSAGE_HANDLER(ExtensionMsg_SetSystemFont, OnSetSystemFont)
+  IPC_MESSAGE_HANDLER(ExtensionMsg_SetWebViewPartitionID,
+                      OnSetWebViewPartitionID)
   IPC_MESSAGE_HANDLER(ExtensionMsg_ShouldSuspend, OnShouldSuspend)
   IPC_MESSAGE_HANDLER(ExtensionMsg_Suspend, OnSuspend)
   IPC_MESSAGE_HANDLER(ExtensionMsg_TransferBlobs, OnTransferBlobs)
@@ -1054,6 +1056,11 @@ void Dispatcher::OnSetSystemFont(const std::string& font_family,
   system_font_size_ = font_size;
 }
 
+void Dispatcher::OnSetWebViewPartitionID(const std::string& parition_id) {
+  if (delegate_)
+    delegate_->SetWebViewPartitionID(parition_id);

[not at google - send to devlin, 2015/08/31 18:31:44]

Despite my earlier comments on the renderer, you might as well just store the
webview partition ID on the Dispatcher, then have the resourcerequestpolicy read
it from there, rather than setting up the delegate structure.

[paulmeyer, 2015/08/31 21:40:08]

Done.

+}
+
 void Dispatcher::OnShouldSuspend(const std::string& extension_id,
                                  uint64 sequence_id) {
   RenderThread::Get()->Send(