Chromecast: communicate HDMI-sink codec changes over IPC.

chromecast/renderer/cast_render_process_observer.cc

Index: chromecast/renderer/cast_render_process_observer.cc
diff --git a/chromecast/renderer/cast_render_process_observer.cc b/chromecast/renderer/cast_render_process_observer.cc
index 316fd616f74ca6b161a3b94c26d97d3139156c7c..caba2442a0cbf04a3a5704af711609ad9f13a45a 100644
--- a/chromecast/renderer/cast_render_process_observer.cc
+++ b/chromecast/renderer/cast_render_process_observer.cc
@@ -4,6 +4,7 @@
 
 #include "chromecast/renderer/cast_render_process_observer.h"
 
+#include "chromecast/renderer/media/capabilities_message_filter.h"
 #include "chromecast/renderer/media/cma_message_filter_proxy.h"
 #include "content/public/renderer/render_thread.h"
 
@@ -31,6 +32,8 @@ void CastRenderProcessObserver::CreateCustomFilters() {
       new media::CmaMessageFilterProxy(thread->GetIOMessageLoopProxy());
   thread->AddFilter(cma_message_filter_proxy_.get());
 #endif  // !defined(OS_ANDROID)
+  capabilities_message_filter_ = new CapabilitiesMessageFilter;
+  thread->AddFilter(capabilities_message_filter_.get());
   for (const auto& filter : platform_message_filters_) {
     thread->AddFilter(filter.get());
   }
@@ -41,9 +44,13 @@ void CastRenderProcessObserver::OnRenderProcessShutdown() {
 #if !defined(OS_ANDROID)
   if (cma_message_filter_proxy_.get()) {
     thread->RemoveFilter(cma_message_filter_proxy_.get());
-    cma_message_filter_proxy_ = NULL;
+    cma_message_filter_proxy_ = nullptr;
   }
 #endif  // !defined(OS_ANDROID)
+  if (capabilities_message_filter_.get()) {
+    thread->RemoveFilter(capabilities_message_filter_.get());
+    capabilities_message_filter_ = nullptr;
+  }
   for (auto& filter : platform_message_filters_) {
     if (filter.get()) {
       thread->RemoveFilter(filter.get());