Media Remoting: Add mojo interfaces between browser and extension.

chrome/browser/media/router/mojo/media_router_mojo_impl.cc

Index: chrome/browser/media/router/mojo/media_router_mojo_impl.cc
diff --git a/chrome/browser/media/router/mojo/media_router_mojo_impl.cc b/chrome/browser/media/router/mojo/media_router_mojo_impl.cc
index e101f47c7322a3760f03919c4094bc2c294644f4..cd45e11211d0514655ddf3d7b15847a8b36d8470 100644
--- a/chrome/browser/media/router/mojo/media_router_mojo_impl.cc
+++ b/chrome/browser/media/router/mojo/media_router_mojo_impl.cc
@@ -28,6 +28,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_tab_helper.h"
 #include "chrome/common/media_router/media_source_helper.h"
+#include "chrome/common/media_router/mojo/media_router.mojom.h"
 #include "chrome/common/media_router/route_message.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/browser/process_manager.h"
@@ -1130,4 +1131,44 @@ void MediaRouterMojoImpl::OnMediaControllerCreated(
   MediaRouterMojoMetrics::RecordMediaRouteControllerCreationResult(success);
 }
 
+void MediaRouterMojoImpl::RegisterRemotingSource(

[imcheng, 2017/06/22 01:13:27]

It seems this logic could actually go into MediaRouterBase.

[xjz, 2017/06/23 19:02:41]

Done.

+    int32_t tab_id,
+    CastRemotingConnector* remoting_source) {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+  DVLOG_WITH_INSTANCE(1) << "RegisterRemotingSource " << tab_id;
+
+  auto it = remoting_sources_.find(tab_id);
+  if (it != remoting_sources_.end()) {
+    DCHECK(remoting_source == it->second);
+    return;
+  }
+  remoting_sources_.emplace(tab_id, std::move(remoting_source));
+}
+
+void MediaRouterMojoImpl::UnRegisterRemotingSource(
+    int32_t tab_id,
+    CastRemotingConnector* remoting_source) {

[imcheng, 2017/06/22 01:13:27]

I'm not sure if you need to pass in remoting_source -- it's only used for
DCHECK.

[xjz, 2017/06/23 19:02:41]

Removed.

+  auto it = remoting_sources_.find(tab_id);
+  DCHECK(it != remoting_sources_.end());
+  DCHECK(it->second == remoting_source);
+  remoting_sources_.erase(it);
+}
+
+void MediaRouterMojoImpl::OnMediaRemoterCreated(
+    int32_t tab_id,
+    media::mojom::MirrorServiceRemoterPtr remoter,
+    media::mojom::MirrorServiceRemotingSourceRequest source_request) {
+  DVLOG_WITH_INSTANCE(1) << __func__ << ": tab_id = " << tab_id;
+
+  auto it = remoting_sources_.find(tab_id);
+  if (it == remoting_sources_.end()) {
+    LOG(WARNING) << __func__
+                 << ": No registered remoting source for tab_id = " << tab_id;
+    return;
+  }
+
+  CastRemotingConnector* connector = it->second;
+  connector->ConnectToService(std::move(source_request), std::move(remoter));
+}
+
 }  // namespace media_router