Update MediaKeys interface for EME

content/renderer/media/webcontentdecryptionmodulesession_impl.h

Index: content/renderer/media/webcontentdecryptionmodulesession_impl.h
diff --git a/content/renderer/media/webcontentdecryptionmodulesession_impl.h b/content/renderer/media/webcontentdecryptionmodulesession_impl.h
index 05a358b0ac471eff1d787d410362d49a535ac889..d270fed82bda391848aad0b354324ed89df8689d 100644
--- a/content/renderer/media/webcontentdecryptionmodulesession_impl.h
+++ b/content/renderer/media/webcontentdecryptionmodulesession_impl.h
@@ -13,6 +13,7 @@
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "content/renderer/media/webcontentdecryptionmoduleresult_helper.h"
 #include "media/base/media_keys.h"
 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleSession.h"
 #include "third_party/WebKit/public/platform/WebString.h"
@@ -49,11 +50,18 @@ class WebContentDecryptionModuleSessionImpl
   virtual void update(const uint8* response,
                       size_t response_length,
                       blink::WebContentDecryptionModuleResult result);
+  virtual void close(blink::WebContentDecryptionModuleResult result);
+  virtual void remove(blink::WebContentDecryptionModuleResult result);
+  virtual void getUsableKeyIds(blink::WebContentDecryptionModuleResult result);
+
+  // TODO(jrummell): Remove the next method once blink updated.
   virtual void release(blink::WebContentDecryptionModuleResult result);
 
   // Callbacks.
   void OnSessionMessage(const std::vector<uint8>& message,
                         const GURL& destination_url);
+  void OnSessionKeysChange(bool has_additional_usable_key);
+  void OnSessionExpirationChange(double new_expiry_time);
   void OnSessionReady();
   void OnSessionClosed();
   void OnSessionError(media::MediaKeys::Exception exception_code,
@@ -61,25 +69,17 @@ class WebContentDecryptionModuleSessionImpl
                       const std::string& error_message);
 
  private:
-  typedef std::map<uint32, blink::WebContentDecryptionModuleResult> ResultMap;
-
   // These function are used as callbacks when CdmPromise resolves/rejects.
   // |result_index| = kReservedIndex means that there is no
   // WebContentDecryptionModuleResult.
   void SessionCreated(uint32 result_index, const std::string& web_session_id);
   void SessionUpdatedOrReleased(uint32 result_index);
+  void KeyIdsAvailable(uint32 result_index, const media::KeyIdsVector& key_ids);
   void SessionError(uint32 result_index,
                     media::MediaKeys::Exception exception_code,
                     uint32 system_code,
                     const std::string& error_message);
 
-  // As initializeNewSession(), update(), and release() get passed a
-  // WebContentDecryptionModuleResult, keep track of them since this class owns
-  // it and needs to keep them around until completed. Returns the index used
-  // to locate the WebContentDecryptionModuleResult when the operation is
-  // complete.
-  uint32 AddResult(blink::WebContentDecryptionModuleResult result);
-
   scoped_refptr<CdmSessionAdapter> adapter_;
 
   // Non-owned pointer.
@@ -96,8 +96,7 @@ class WebContentDecryptionModuleSessionImpl
   bool is_closed_;
 
   // Keep track of all the outstanding WebContentDecryptionModuleResult objects.
-  uint32 next_available_result_index_;
-  ResultMap outstanding_results_;
+  WebContentDecryptionModuleResultHelper outstanding_results_;
 
   // Since promises will live until they are fired, use a weak reference when
   // creating a promise in case this class disappears before the promise