Fix for WebView accessible resources.

extensions/renderer/renderer_extension_registry.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/renderer/renderer_extension_registry.h"
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "content/public/renderer/render_thread.h"
 
@@ skipping 20 matching lines @@
   // This can only be modified on the RenderThread, because
   // GetMainThreadExtensionSet is inherently thread unsafe.
   // Enforcing single-thread modification at least mitigates this.
   // TODO(annekao): Remove this restriction once GetMainThreadExtensionSet is
   // fixed.
   DCHECK(content::RenderThread::Get());
   base::AutoLock lock(lock_);
   return &extensions_;
 }
 
+void RendererExtensionRegistry::SetWebviewPartitionID(
+    const std::string& partition_id) {
+  // |webview_partition_id_| cannot be changed once set.
+  DCHECK(webview_partition_id_.empty() ||
+         webview_partition_id_ == partition_id);
+  if (webview_partition_id_.empty())
+    webview_partition_id_ = partition_id;
+}
+
 size_t RendererExtensionRegistry::size() const {
   base::AutoLock lock(lock_);
   return extensions_.size();
 }
 
 bool RendererExtensionRegistry::is_empty() const {
   base::AutoLock lock(lock_);
   return extensions_.is_empty();
 }
 
@@ skipping 45 matching lines @@
   return extensions_.GetIDs();
 }
 
 bool RendererExtensionRegistry::ExtensionBindingsAllowed(
     const GURL& url) const {
   base::AutoLock lock(lock_);
   return extensions_.ExtensionBindingsAllowed(url);
 }
 
 }  // namespace extensions