Made EglBase an abstract class and cleaned up.

talk/app/webrtc/java/android/org/webrtc/EglBase14.java

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 29 matching lines @@
 
 /**
  * Holds EGL state and utility methods for handling an EGL14 EGLContext, an EGLDisplay,
  * and an EGLSurface.
  */
 @TargetApi(17)
 final class EglBase14 extends EglBase {
   private static final String TAG = "EglBase14";
   private static final int EGL14_SDK_VERSION = android.os.Build.VERSION_CODES.JELLY_BEAN_MR1;
   private static final int CURRENT_SDK_VERSION = android.os.Build.VERSION.SDK_INT;
-  // Android-specific extension.
-  private static final int EGL_RECORDABLE_ANDROID = 0x3142;
-
   private EGLContext eglContext;
   private EGLConfig eglConfig;
   private EGLDisplay eglDisplay;
   private EGLSurface eglSurface = EGL14.EGL_NO_SURFACE;
 
   public static boolean isEGL14Supported() {
     Logging.d(TAG, "SDK version: " + CURRENT_SDK_VERSION
         + ". isEGL14Supported: " + (CURRENT_SDK_VERSION >= EGL14_SDK_VERSION));
     return (CURRENT_SDK_VERSION >= EGL14_SDK_VERSION);
   }
 
   public static class Context extends EglBase.Context {
     private final android.opengl.EGLContext egl14Context;
 
     Context(android.opengl.EGLContext eglContext) {
-      super(null);
       this.egl14Context = eglContext;
     }
   }
 
   // Create a new context with the specified config type, sharing data with sharedContext.
   // |sharedContext| may be null.
   EglBase14(EglBase14.Context sharedContext, int[] configAttributes) {
-    super(true /* dummy */);
     eglDisplay = getEglDisplay();
     eglConfig = getEglConfig(eglDisplay, configAttributes);
     eglContext = createEglContext(sharedContext, eglDisplay, eglConfig);
   }
 
   // Create EGLSurface from the Android Surface.
   @Override
   public void createSurface(Surface surface) {
     createSurfaceInternal(surface);
   }
@@ skipping 150 matching lines @@
     EGLContext rootContext =
         sharedContext == null ? EGL14.EGL_NO_CONTEXT : sharedContext.egl14Context;
     EGLContext eglContext =
         EGL14.eglCreateContext(eglDisplay, eglConfig, rootContext, contextAttributes, 0);
     if (eglContext == EGL14.EGL_NO_CONTEXT) {
       throw new RuntimeException("Failed to create EGL context");
     }
     return eglContext;
   }
 }