media: Remove Browser CDM implementation

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 029baf3e2dae1e75453bc265deb805c70a1e3b69..53ef8c2b332ab182a31861f09f9bd78d6ae85d00 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -224,10 +224,6 @@
 #include "ui/ozone/public/ozone_switches.h"
 #endif
 
-#if defined(ENABLE_BROWSER_CDMS)
-#include "content/browser/media/cdm/browser_cdm_manager.h"
-#endif
-
 #if defined(ENABLE_PLUGINS)
 #include "content/browser/plugin_service_impl.h"
 #endif
@@ -1146,9 +1142,6 @@ void RenderProcessHostImpl::CreateMessageFilters() {
   // should eventually be if (!ShouldUseDirectWrite()) guarded.
   channel_->AddFilter(new FontCacheDispatcher());
 #endif
-#if defined(ENABLE_BROWSER_CDMS)
-  AddFilter(new BrowserCdmManager(GetID(), NULL));
-#endif
 
   message_port_message_filter_ = new MessagePortMessageFilter(
       base::Bind(&RenderWidgetHelper::GetNextRoutingID,
@@ -1360,18 +1353,6 @@ const base::TimeTicks& RenderProcessHostImpl::GetInitTimeForNavigationMetrics()
   return init_time_;
 }
 
-#if defined(ENABLE_BROWSER_CDMS)
-scoped_refptr<media::MediaKeys> RenderProcessHostImpl::GetCdm(
-    int render_frame_id,
-    int cdm_id) const {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  BrowserCdmManager* manager = BrowserCdmManager::FromProcess(GetID());
-  if (!manager)
-    return nullptr;
-  return manager->GetCdm(render_frame_id, cdm_id);
-}
-#endif
-
 bool RenderProcessHostImpl::IsProcessBackgrounded() const {
   return is_process_backgrounded_;
 }