Implement BroadcastChannel

content/browser/storage_partition_impl.h

Index: content/browser/storage_partition_impl.h
diff --git a/content/browser/storage_partition_impl.h b/content/browser/storage_partition_impl.h
index 99f9a34a386205d7057a32faa34238907964c769..7e53766e4208fc2cd4981be69ac3d6b88c32b6c4 100644
--- a/content/browser/storage_partition_impl.h
+++ b/content/browser/storage_partition_impl.h
@@ -12,6 +12,7 @@
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "components/webmessaging/broadcast_channel_provider.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/background_sync/background_sync_context.h"
 #include "content/browser/cache_storage/cache_storage_context_impl.h"
@@ -69,6 +70,7 @@ class CONTENT_EXPORT  StoragePartitionImpl
   PlatformNotificationContextImpl* GetPlatformNotificationContext() override;
 
   BackgroundSyncContext* GetBackgroundSyncContext();
+  webmessaging::BroadcastChannelProvider* GetBroadcastChannelProvider();
 
   // mojom::StoragePartitionService interface.
   void OpenLocalStorage(
@@ -173,7 +175,9 @@ class CONTENT_EXPORT  StoragePartitionImpl
       storage::SpecialStoragePolicy* special_storage_policy,
       HostZoomLevelContext* host_zoom_level_context,
       PlatformNotificationContextImpl* platform_notification_context,
-      BackgroundSyncContext* background_sync_context);
+      BackgroundSyncContext* background_sync_context,
+      scoped_refptr<webmessaging::BroadcastChannelProvider>
+          broadcast_channel_provider);
 
   // We will never have both remove_origin be populated and a cookie_matcher.
   void ClearDataImpl(uint32_t remove_mask,
@@ -219,6 +223,8 @@ class CONTENT_EXPORT  StoragePartitionImpl
   scoped_refptr<HostZoomLevelContext> host_zoom_level_context_;
   scoped_refptr<PlatformNotificationContextImpl> platform_notification_context_;
   scoped_refptr<BackgroundSyncContext> background_sync_context_;
+  scoped_refptr<webmessaging::BroadcastChannelProvider>
+      broadcast_channel_provider_;
 
   mojo::BindingSet<mojom::StoragePartitionService> bindings_;