Convert Widevine and Android platform key systems to KeySystemProperties

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 3be44db4e3ac995486403a314e04a0ce71f7ab86..23741dbf918b084f161a88efc722bc5f047b452c 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -1243,6 +1243,11 @@ bool ChromeContentRendererClient::AllowPepperMediaStreamAPI(
 
 void ChromeContentRendererClient::AddKeySystems(
     std::vector<media::KeySystemInfo>* key_systems) {
+  AddChromeKeySystemsInfo(key_systems);
+}
+
+void ChromeContentRendererClient::AddSupportedKeySystems(

[xhwang, 2016/04/27 19:28:39]

It might be worth mentioning in the content client API or somewhere else that
AddKeySystems() and AddSupportedKeySystems() are complementing each other today.
Otherwise the change in chrome_key_systems.cc would be a bit confusing since
externalclearkey uses the old way but widevine is using the new one.

[halliwell, 2016/04/27 22:20:13]

It is already mentioned that the KeySystemInfo API is deprecated, with a TODO to
move everything to new API.  I think I only need one more CL to finish the move.

+    std::vector<std::unique_ptr<::media::KeySystemProperties>>* key_systems) {
   AddChromeKeySystems(key_systems);
 }