Adds MediaClientAndroid to support embedder/MediaDrmBridge interaction.

chrome/browser/chrome_browser_main_android.cc

Index: chrome/browser/chrome_browser_main_android.cc
diff --git a/chrome/browser/chrome_browser_main_android.cc b/chrome/browser/chrome_browser_main_android.cc
index 9f977fc83f481ccddc7c1b7e1bb9377a8fa2b536..4e05a99efb8c1cacb43d8127db79030e7dfc328c 100644
--- a/chrome/browser/chrome_browser_main_android.cc
+++ b/chrome/browser/chrome_browser_main_android.cc
@@ -7,6 +7,7 @@
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/trace_event/trace_event.h"
+#include "chrome/browser/android/chrome_media_client_android.h"
 #include "chrome/browser/android/seccomp_support_detector.h"
 #include "chrome/browser/google/google_search_counter_android.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
@@ -18,6 +19,7 @@
 #include "content/public/browser/android/compositor.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/main_function_params.h"
+#include "media/base/android/media_client_android.h"
 #include "net/android/network_change_notifier_factory_android.h"
 #include "net/base/network_change_notifier.h"
 #include "ui/base/ui_base_paths.h"
@@ -96,6 +98,12 @@ void ChromeBrowserMainPartsAndroid::PreEarlyInitialization() {
   ChromeBrowserMainParts::PreEarlyInitialization();
 }
 
+void ChromeBrowserMainPartsAndroid::PreMainMessageLoopRun() {
+  media::SetMediaClientAndroid(new ChromeMediaClientAndroid);
+
+  ChromeBrowserMainParts::PreMainMessageLoopRun();
+}
+
 void ChromeBrowserMainPartsAndroid::PostBrowserStart() {
   ChromeBrowserMainParts::PostBrowserStart();