Simplify/Cleanup MediaClient

content/public/renderer/content_renderer_client.h

Index: content/public/renderer/content_renderer_client.h
diff --git a/content/public/renderer/content_renderer_client.h b/content/public/renderer/content_renderer_client.h
index 78543f883ce061fd47b90459db6f184551651c57..8e767f7c5becdbff85a9cee01822bd5f24626e93 100644
--- a/content/public/renderer/content_renderer_client.h
+++ b/content/public/renderer/content_renderer_client.h
@@ -18,6 +18,7 @@
 #include "base/task_scheduler/task_scheduler.h"
 #include "build/build_config.h"
 #include "content/public/common/content_client.h"
+#include "media/base/decode_capabilities.h"
 #include "third_party/WebKit/public/platform/WebPageVisibilityState.h"
 #include "third_party/WebKit/public/web/WebNavigationPolicy.h"
 #include "third_party/WebKit/public/web/WebNavigationType.h"
@@ -264,11 +265,22 @@ class CONTENT_EXPORT ContentRendererClient {
   // Allows an embedder to provide a default image decode color space.
   virtual std::unique_ptr<gfx::ICCProfile> GetImageDecodeColorProfile();
 
-  // Gives the embedder a chance to register the key system(s) it supports by
-  // populating |key_systems|.
+  // Allows embedder to register the key system(s) it supports by populating
+  // |key_systems|.
   virtual void AddSupportedKeySystems(
       std::vector<std::unique_ptr<media::KeySystemProperties>>* key_systems);
 
+  // Signal that embedder has changed key systems.
+  // TODO(chcunningham): Refactor this to a proper change "observer" API that is
+  // less fragile (don't assume AddSupportedKeySystems has just one caller).
+  virtual bool IsKeySystemsUpdateNeeded();
+
+  // Allows embedder to describe customized audio capabilities.
+  virtual bool IsSupportedAudioConfig(const media::AudioConfig& config);
+
+  // Allows embedder to describe customized video capabilities.
+  virtual bool IsSupportedVideoConfig(const media::VideoConfig& config);
+
   // Returns true if we should report a detailed message (including a stack
   // trace) for console [logs|errors|exceptions]. |source| is the WebKit-
   // reported source for the error; this can point to a page or a script,