[proof-of-concept] SW thread independent of the main thread

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index dc2f91b48d2f6c51019369ede5ac168eda7a8622..3045dc571dc8f8fcdb13bfbb192390c2093b878b 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -134,6 +134,7 @@
 #include "content/common/mojo/mojo_shell_connection_impl.h"
 #include "content/common/render_process_messages.h"
 #include "content/common/resource_messages.h"
+#include "content/common/service_worker/embedded_worker_setup.mojom.h"
 #include "content/common/site_isolation_policy.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/browser_context.h"
@@ -462,6 +463,43 @@ void CreateMemoryCoordinatorHandle(
       render_process_id, std::move(request));
 }
 
+class IsolatedWorkerDispatcherRecieverImpl
+    : public mojom::IsolatedWorkerDispatcherReciever {
+ public:
+  IsolatedWorkerDispatcherRecieverImpl(
+      base::WeakPtr<RenderProcessHostImpl> process,
+      mojom::IsolatedWorkerDispatcherRecieverRequest request)
+      : process_(process), binding_(this, std::move(request)) {
+    TRACE_EVENT0("ServiceWorker",
+                 "IsolatedWorkerDispatcherRecieverImpl::"
+                 "IsolatedWorkerDispatcherRecieverImpl");
+    LOG(ERROR) << "IsolatedWorkerDispatcherRecieverImpl";
+  }
+  ~IsolatedWorkerDispatcherRecieverImpl() override {
+    LOG(ERROR) << "~IsolatedWorkerDispatcherRecieverImpl";
+  }
+
+  void SetDispatcher(mojom::IsolatedWorkerDispatcherPtr dispatcher) override {
+    TRACE_EVENT0("ServiceWorker",
+                 "IsolatedWorkerDispatcherRecieverImpl::SetDispatcher");
+    LOG(ERROR) << "IsolatedWorkerDispatcherRecieverImpl::SetDispatcher";
+    if (process_)
+      process_->SetIsolatedWorkerDispatcher(std::move(dispatcher));
+  }
+
+ private:
+  base::WeakPtr<RenderProcessHostImpl> process_;
+  mojo::StrongBinding<mojom::IsolatedWorkerDispatcherReciever> binding_;
+};
+
+void CreateIsolatedWorkerDispatcherReciever(
+    base::WeakPtr<RenderProcessHostImpl> process,
+    mojom::IsolatedWorkerDispatcherRecieverRequest request) {
+  TRACE_EVENT0("ServiceWorker", "CreateIsolatedWorkerDispatcherReciever");
+  LOG(ERROR) << "CreateIsolatedWorkerDispatcherReciever";
+  new IsolatedWorkerDispatcherRecieverImpl(process, std::move(request));
+}
+
 }  // namespace
 
 RendererMainThreadFactoryFunction g_renderer_main_thread_factory = NULL;
@@ -1221,6 +1259,9 @@ void RenderProcessHostImpl::RegisterMojoInterfaces() {
                  base::Unretained(
                      storage_partition_impl_->GetPlatformNotificationContext()),
                  GetID()));
+  AddUIThreadInterface(registry.get(),
+                       base::Bind(&CreateIsolatedWorkerDispatcherReciever,
+                                  weak_factory_.GetWeakPtr()));
   AddUIThreadInterface(
       registry.get(),
       base::Bind(&RenderProcessHostImpl::CreateStoragePartitionService,
@@ -1251,6 +1292,9 @@ void RenderProcessHostImpl::RegisterMojoInterfaces() {
   registry->AddInterface(base::Bind(&DeviceOrientationAbsoluteHost::Create));
   registry->AddInterface(
       base::Bind(&URLLoaderFactoryImpl::Create, resource_message_filter_));
+  registry->AddInterface(base::Bind(
+      &ServiceWorkerContextWrapper::CreateService,
+      base::Unretained(storage_partition_impl_->GetServiceWorkerContext())));
 
   // This is to support usage of WebSockets in cases in which there is no
   // associated RenderFrame (e.g., Shared Workers).
@@ -2935,4 +2979,36 @@ void RenderProcessHostImpl::OnMojoError(
                                   bad_message::RPH_MOJO_PROCESS_ERROR);
 }
 
+void RenderProcessHostImpl::SetIsolatedWorkerDispatcher(
+    mojo::InterfacePtr<mojom::IsolatedWorkerDispatcher> dispatcher) {
+  LOG(ERROR)
+      << "RenderProcessHostImpl::SetIsolatedWorkerDispatcher----------SetSet";
+  isolated_worker_dispatcher_.reset(
+      new mojom::IsolatedWorkerDispatcherPtr(std::move(dispatcher)));
+  if (isolated_worker_dispatcher_callbacks_.empty())
+    return;
+  std::vector<base::Callback<void(
+      mojo::InterfacePtr<mojom::IsolatedWorkerDispatcher>*)>>
+      callbacks;
+  callbacks.swap(isolated_worker_dispatcher_callbacks_);
+  for (auto& callback : callbacks) {
+    LOG(ERROR)
+        << "callback>><>>><><><<<>><>>><><><<<>><>>><><><<<>><>>><><><<<";
+    callback.Run(isolated_worker_dispatcher_.get());
+  }
+}
+void RenderProcessHostImpl::GetIsolatedWorkerDispatcher(
+    const base::Callback<
+        void(mojo::InterfacePtr<mojom::IsolatedWorkerDispatcher>*)>& callback) {
+  LOG(ERROR) << "GetIsolatedWorkerDispatcher";
+  if (isolated_worker_dispatcher_) {
+    callback.Run(isolated_worker_dispatcher_.get());
+    return;
+  }
+  LOG(ERROR) << "adding to "
+                "callback>><>>><><><<<>><>>><><><<<>><>>><><><<<>><>>><><><<"
+                "<";
+  isolated_worker_dispatcher_callbacks_.push_back(callback);
+}
+
 }  // namespace content