Move MediaKeys::Exception to CdmPromise::Exception

media/base/cdm_promise.h

 // 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.
 
 #ifndef MEDIA_BASE_CDM_PROMISE_H_
 #define MEDIA_BASE_CDM_PROMISE_H_
 
 #include <stdint.h>
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "media/base/media_export.h"
-#include "media/base/media_keys.h"
 
 namespace media {
 
 // Interface for promises being resolved/rejected in response to various
 // session actions. These may be called synchronously or asynchronously.
 // The promise must be resolved or rejected exactly once. It is expected that
 // the caller free the promise once it is resolved/rejected.
 
 // These classes are almost generic, except for the parameters to reject(). If
 // a generic class for promises is available, this could be changed to use the
 // generic class as long as the parameters to reject() can be set appropriately.
 
 // The base class only has a reject() method and GetResolveParameterType() that
 // indicates the type of CdmPromiseTemplate. CdmPromiseTemplate<T> adds the
 // resolve(T) method that is dependent on the type of promise. This base class
 // is specified so that the promises can be easily saved before passing across
 // the pepper interface.
 class MEDIA_EXPORT CdmPromise {
  public:
+  // TODO(jrummell): Remove deprecated errors. See
+  // http://crbug.com/570216
+  enum Exception {
+    NOT_SUPPORTED_ERROR,
+    INVALID_STATE_ERROR,
+    INVALID_ACCESS_ERROR,
+    QUOTA_EXCEEDED_ERROR,
+    UNKNOWN_ERROR,
+    CLIENT_ERROR,
+    OUTPUT_ERROR,
+    EXCEPTION_MAX = OUTPUT_ERROR
+  };
+
   enum ResolveParameterType {
     VOID_TYPE,
     INT_TYPE,
     STRING_TYPE,
     KEY_IDS_VECTOR_TYPE
   };
 
   CdmPromise();
   virtual ~CdmPromise();
 
   // Used to indicate that the operation failed. |exception_code| must be
   // specified. |system_code| is a Key System-specific value for the error
   // that occurred, or 0 if there is no associated status code or such status
   // codes are not supported by the Key System. |error_message| is optional.
-  virtual void reject(MediaKeys::Exception exception_code,
+  virtual void reject(CdmPromise::Exception exception_code,

[xhwang, 2016/10/26 00:13:04]

nit: No need for "CdmPromise::" here.

                       uint32_t system_code,
                       const std::string& error_message) = 0;
 
   // Used to determine the template type of CdmPromiseTemplate<T> so that
   // saved CdmPromise objects can be cast to the correct templated version.
   virtual ResolveParameterType GetResolveParameterType() const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CdmPromise);
 };
@@ skipping 23 matching lines @@
 template <typename... T>
 class MEDIA_EXPORT CdmPromiseTemplate : public CdmPromise {
  public:
   CdmPromiseTemplate() : is_settled_(false) {}
 
   virtual ~CdmPromiseTemplate() { DCHECK(is_settled_); }
 
   virtual void resolve(const T&... result) = 0;
 
   // CdmPromise implementation.
-  virtual void reject(MediaKeys::Exception exception_code,
+  virtual void reject(CdmPromise::Exception exception_code,

[xhwang, 2016/10/26 00:13:05]

ditto

                       uint32_t system_code,
                       const std::string& error_message) = 0;
 
   ResolveParameterType GetResolveParameterType() const override {
     return CdmPromiseTraits<T...>::kType;
   }
 
  protected:
   bool IsPromiseSettled() const { return is_settled_; }
 
   // All implementations must call this method in resolve() and reject() methods
   // to indicate that the promise has been settled.
   void MarkPromiseSettled() {
     // Promise can only be settled once.
     DCHECK(!is_settled_);
     is_settled_ = true;
   }
 
   // Must be called by the concrete destructor if !IsPromiseSettled().
   // Note: We can't call reject() in ~CdmPromise() because reject() is virtual.
   void RejectPromiseOnDestruction() {
     DCHECK(!is_settled_);
     std::string message =
         "Unfulfilled promise rejected automatically during destruction.";
     DVLOG(1) << message;
-    reject(MediaKeys::INVALID_STATE_ERROR, 0, message);
+    reject(CdmPromise::INVALID_STATE_ERROR, 0, message);

[xhwang, 2016/10/26 00:13:04]

ditto

     DCHECK(is_settled_);
   }
 
  private:
   // Keep track of whether the promise has been resolved or rejected yet.
   bool is_settled_;
 
   DISALLOW_COPY_AND_ASSIGN(CdmPromiseTemplate);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_CDM_PROMISE_H_