Support exposing Mojo services between render frames, render threads, and their respective hosts.

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright (c) 2012 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 123 matching lines @@
 #include "content/public/common/content_switches.h"
 #include "content/public/common/process_type.h"
 #include "content/public/common/result_codes.h"
 #include "content/public/common/sandboxed_process_launcher_delegate.h"
 #include "content/public/common/url_constants.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_logging.h"
 #include "ipc/ipc_switches.h"
 #include "media/base/media_switches.h"
-#include "mojo/common/common_type_converters.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "ppapi/shared_impl/ppapi_switches.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/events/event_switches.h"
 #include "ui/gfx/switches.h"
 #include "ui/gl/gl_switches.h"
 #include "ui/native_theme/native_theme_switches.h"
 #include "webkit/browser/fileapi/sandbox_file_system_backend.h"
 #include "webkit/common/resource_type.h"
@@ skipping 435 matching lines @@
   // Setup the IPC channel.
   const std::string channel_id =
       IPC::Channel::GenerateVerifiedChannelID(std::string());
   channel_ = IPC::ChannelProxy::Create(
       channel_id,
       IPC::Channel::MODE_SERVER,
       this,
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO).get());
 
   // Setup the Mojo channel.
+  mojo::ScopedMessagePipeHandle shell_handle;
   mojo_application_host_.reset(new MojoApplicationHost());
-  mojo_application_host_->Init();
+  mojo_application_host_->Init(&shell_handle);
+  service_registry_.Bind(shell_handle.Pass());
 
   // Call the embedder first so that their IPC filters have priority.
   GetContentClient()->browser()->RenderProcessWillLaunch(this);
 
   CreateMessageFilters();
 
   if (run_renderer_in_process()) {
     DCHECK(g_renderer_main_thread_factory);
     // Crank up a thread and run the initialization there.  With the way that
     // messages flow between the browser and renderer, this thread is required
@@ skipping 285 matching lines @@
 
 void RenderProcessHostImpl::ResumeDeferredNavigation(
     const GlobalRequestID& request_id) {
   widget_helper_->ResumeDeferredNavigation(request_id);
 }
 
 void RenderProcessHostImpl::NotifyTimezoneChange() {
   Send(new ViewMsg_TimezoneChange());
 }
 
+ServiceRegistry* RenderProcessHostImpl::GetServiceRegistry() {
+  return &service_registry_;
+}
+
+void RenderProcessHostImpl::ActivateMojo() {
+  mojo_activation_required_ = true;
+  MaybeActivateMojo();
+}
+
 void RenderProcessHostImpl::AddRoute(
     int32 routing_id,
     IPC::Listener* listener) {
   listeners_.AddWithID(listener, routing_id);
 }
 
 void RenderProcessHostImpl::RemoveRoute(int32 routing_id) {
   DCHECK(listeners_.Lookup(routing_id) != NULL);
   listeners_.Remove(routing_id);
 
@@ skipping 1269 matching lines @@
 }
 
 void RenderProcessHostImpl::DecrementWorkerRefCount() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK_GT(worker_ref_count_, 0);
   --worker_ref_count_;
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
-void RenderProcessHostImpl::ConnectTo(
-    const base::StringPiece& service_name,
-    mojo::ScopedMessagePipeHandle handle) {
-  mojo_activation_required_ = true;
-  MaybeActivateMojo();
-
-  mojo_application_host_->service_provider()->ConnectToService(
-      mojo::String::From(service_name),
-      std::string(),
-      handle.Pass(),
-      mojo::String());
-}
-
 void RenderProcessHostImpl::OnAllocateGpuMemoryBuffer(uint32 width,
                                                       uint32 height,
                                                       uint32 internalformat,
                                                       uint32 usage,
                                                       IPC::Message* reply) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   if (!GpuMemoryBufferImpl::IsFormatValid(internalformat) ||
       !GpuMemoryBufferImpl::IsUsageValid(usage)) {
     GpuMemoryBufferAllocated(reply, gfx::GpuMemoryBufferHandle());
     return;
@@ skipping 82 matching lines @@
 void RenderProcessHostImpl::GpuMemoryBufferAllocated(
     IPC::Message* reply,
     const gfx::GpuMemoryBufferHandle& handle) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer::WriteReplyParams(reply,
                                                                     handle);
   Send(reply);
 }
 
 }  // namespace content