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 50 matching lines @@
 #include "content/browser/histogram_message_filter.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
 #include "content/browser/indexed_db/indexed_db_dispatcher_host.h"
 #include "content/browser/loader/resource_message_filter.h"
 #include "content/browser/loader/resource_scheduler_filter.h"
 #include "content/browser/media/capture/audio_mirroring_manager.h"
 #include "content/browser/media/media_internals.h"
 #include "content/browser/media/midi_host.h"
 #include "content/browser/message_port_message_filter.h"
 #include "content/browser/mime_registry_message_filter.h"
-#include "content/browser/mojo/mojo_application_host.h"
 #include "content/browser/plugin_service_impl.h"
 #include "content/browser/profiler_message_filter.h"
 #include "content/browser/push_messaging_message_filter.h"
 #include "content/browser/quota_dispatcher_host.h"
 #include "content/browser/renderer_host/clipboard_message_filter.h"
 #include "content/browser/renderer_host/database_message_filter.h"
 #include "content/browser/renderer_host/file_utilities_message_filter.h"
 #include "content/browser/renderer_host/gamepad_browser_message_filter.h"
 #include "content/browser/renderer_host/gpu_message_filter.h"
 #include "content/browser/renderer_host/media/audio_input_renderer_host.h"
@@ skipping 51 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 286 matching lines @@
 RenderProcessHostImpl::RenderProcessHostImpl(
     BrowserContext* browser_context,
     StoragePartitionImpl* storage_partition_impl,
     bool is_isolated_guest)
     : fast_shutdown_started_(false),
       deleting_soon_(false),
 #ifndef NDEBUG
       is_self_deleted_(false),
 #endif
       pending_views_(0),
+      mojo_application_host_(new MojoApplicationHost),
       mojo_activation_required_(false),
       visible_widgets_(0),
       backgrounded_(true),
       is_initialized_(false),
       id_(ChildProcessHostImpl::GenerateChildProcessUniqueId()),
       browser_context_(browser_context),
       storage_partition_impl_(storage_partition_impl),
       sudden_termination_allowed_(true),
       ignore_input_events_(false),
       is_isolated_guest_(is_isolated_guest),
@@ skipping 129 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_application_host_.reset(new MojoApplicationHost());
   mojo_application_host_->Init();
 
   // 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
@@ skipping 290 matching lines @@
 
 void RenderProcessHostImpl::ResumeResponseDeferredAtStart(
     const GlobalRequestID& request_id) {
   widget_helper_->ResumeResponseDeferredAtStart(request_id);
 }
 
 void RenderProcessHostImpl::NotifyTimezoneChange() {
   Send(new ViewMsg_TimezoneChange());
 }
 
+ServiceRegistry* RenderProcessHostImpl::GetServiceRegistry() {
+  if (!mojo_application_host_)
+    return NULL;
+  return mojo_application_host_->service_registry();
+}
+
 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 1008 matching lines @@
 
   IDMap<IPC::Listener>::iterator iter(&listeners_);
   while (!iter.IsAtEnd()) {
     iter.GetCurrentValue()->OnMessageReceived(
         ViewHostMsg_RenderProcessGone(iter.GetCurrentKey(),
                                       static_cast<int>(status),
                                       exit_code));
     iter.Advance();
   }
 
-  mojo_application_host_.reset();
+  mojo_application_host_.reset(new MojoApplicationHost);
+  mojo_activation_required_ = false;
 
   // It's possible that one of the calls out to the observers might have caused
   // this object to be no longer needed.
   if (delayed_cleanup_needed_)
     Cleanup();
 
   // This object is not deleted at this point and might be reused later.
   // TODO(darin): clean this up
 }
 
@@ skipping 299 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) {
+void RenderProcessHostImpl::EnsureMojoActivated() {
   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)) {
@@ skipping 84 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