Dismiss EME infobar when WebMediaPlayer is destroyed.

content/shell/browser/shell_browser_context.cc

Index: content/shell/browser/shell_browser_context.cc
diff --git a/content/shell/browser/shell_browser_context.cc b/content/shell/browser/shell_browser_context.cc
index 8533713dc6684ef63ad32d2d7ab89e68beaacfdd..b81a5b3fd4ff25fa19d72f7d8c82a60ecc348699 100644
--- a/content/shell/browser/shell_browser_context.cc
+++ b/content/shell/browser/shell_browser_context.cc
@@ -199,6 +199,21 @@ void ShellBrowserContext::CancelMIDISysExPermissionRequest(
     const GURL& requesting_frame) {
 }
 
+void ShellBrowserContext::RequestProtectedMediaIdentifierPermission(
+    int render_process_id,
+    int render_view_id,
+    int bridge_id,
+    int group_id,
+    const GURL& requesting_frame,
+    const ProtectedMediaIdentifierPermissionCallback& callback) {
+  // Always reject requests for testing.
+  callback.Run(false);
+}
+
+void ShellBrowserContext::CancelProtectedMediaIdentifierPermissionRequests(
+    int group_id) {
+}
+
 net::URLRequestContextGetter*
     ShellBrowserContext::CreateRequestContextForStoragePartition(
         const base::FilePath& partition_path,