Restrict use of hardware-secure codecs based on the RendererPreference.

components/html_viewer/html_document.cc

Index: components/html_viewer/html_document.cc
diff --git a/components/html_viewer/html_document.cc b/components/html_viewer/html_document.cc
index 227dae3280360905fbce1ceccaabcbc185e17b14..8ea66168bf06b0cb15b163a86adaf34881fe9bd1 100644
--- a/components/html_viewer/html_document.cc
+++ b/components/html_viewer/html_document.cc
@@ -328,7 +328,8 @@ void HTMLDocument::didNavigateWithinPage(
 blink::WebEncryptedMediaClient* HTMLDocument::encryptedMediaClient() {
   if (!web_encrypted_media_client_) {
     web_encrypted_media_client_.reset(new media::WebEncryptedMediaClientImpl(
-        GetCdmFactory(), GetMediaPermission()));
+        base::Bind(&AreSecureSurfacesSupported), GetCdmFactory(),
+        GetMediaPermission()));
   }
   return web_encrypted_media_client_.get();
 }
@@ -382,4 +383,9 @@ media::CdmFactory* HTMLDocument::GetCdmFactory() {
   return cdm_factory_.get();
 }
 
+bool AreSecureSurfacesSupported() {
+  // Not currently supported by HTML Viewer.
+  return false;
+}
+
 }  // namespace html_viewer