Revert of Break peerconnection_jni.cc into multiple files, in "pc" directory.

webrtc/sdk/android/src/jni/androidmediacodeccommon.h

 /*
  *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 52 matching lines @@
 enum { kMaxDecodedLogFrames = 10 };
 // Maximum amount of encoded frames for which per-frame logging is enabled.
 enum { kMaxEncodedLogFrames = 10 };
 
 static inline void AllowBlockingCalls() {
   rtc::Thread* current_thread = rtc::Thread::Current();
   if (current_thread != NULL)
     current_thread->SetAllowBlockingCalls(true);
 }
 
+// Return the (singleton) Java Enum object corresponding to |index|;
+// |state_class_fragment| is something like "MediaSource$State".
+static inline jobject JavaEnumFromIndexAndClassName(
+    JNIEnv* jni, const std::string& state_class_fragment, int index) {
+  const std::string state_class = "org/webrtc/" + state_class_fragment;
+  return JavaEnumFromIndex(jni, FindClass(jni, state_class.c_str()),
+                           state_class, index);
+}
+
 // Checks for any Java exception, prints stack backtrace and clears
 // currently thrown exception.
 static inline bool CheckException(JNIEnv* jni) {
   if (jni->ExceptionCheck()) {
     LOG_TAG(rtc::LS_ERROR, TAG_COMMON) << "Java JNI exception.";
     jni->ExceptionDescribe();
     jni->ExceptionClear();
     return true;
   }
   return false;
 }
 
 }  // namespace webrtc_jni
 
 #endif  // WEBRTC_SDK_ANDROID_SRC_JNI_ANDROIDMEDIACODECCOMMON_H_