Make video codec support logic overridable via MediaClient

content/renderer/media/render_media_client.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/render_media_client.h"
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/time/default_tick_clock.h"
 #include "content/public/common/content_client.h"
@@ skipping 75 matching lines @@
 #else
   is_update_needed_ = false;
 #endif
 }
 
 void RenderMediaClient::RecordRapporURL(const std::string& metric,
                                         const GURL& url) {
   GetContentClient()->renderer()->RecordRapporURL(metric, url);
 }
 
+bool RenderMediaClient::IsSupportedVideoConfig(media::VideoCodec codec,
+                                               media::VideoCodecProfile profile,
+                                               int level) {
+  switch (codec) {
+    case media::kCodecH264:
+    case media::kCodecVP8:
+    case media::kCodecVP9:
+    case media::kCodecTheora:
+      return true;
+
+    case media::kUnknownVideoCodec:
+    case media::kCodecVC1:
+    case media::kCodecMPEG2:
+    case media::kCodecMPEG4:
+    case media::kCodecHEVC:
+      return false;
+  }
+
+  NOTREACHED();
+  return false;
+}
+
 void RenderMediaClient::SetTickClockForTesting(
     std::unique_ptr<base::TickClock> tick_clock) {
   tick_clock_.swap(tick_clock);
 }
 
 // This functions is for testing purpose only. The declaration in the
 // header file is guarded by "#if defined(UNIT_TEST)" so that it can be used
 // by tests but not non-test code. However, this .cc file is compiled as part of
 // "content" where "UNIT_TEST" is not defined. So we need to specify
 // "CONTENT_EXPORT" here again so that it is visible to tests.
 CONTENT_EXPORT RenderMediaClient* GetRenderMediaClientInstanceForTesting() {
   return g_render_media_client.Pointer();
 }
 
 }  // namespace content