Android: Expose EglBase.swapBuffers with presentation time

webrtc/sdk/android/api/org/webrtc/EglBase.java

Index: webrtc/sdk/android/api/org/webrtc/EglBase.java
diff --git a/webrtc/sdk/android/api/org/webrtc/EglBase.java b/webrtc/sdk/android/api/org/webrtc/EglBase.java
index 619022c770eb32bfb29c5861e8b782c65cadb4c5..2a8d4e4bd19bf47be708a3eeac9584bf2cd2846b 100644
--- a/webrtc/sdk/android/api/org/webrtc/EglBase.java
+++ b/webrtc/sdk/android/api/org/webrtc/EglBase.java
@@ -19,7 +19,8 @@ import javax.microedition.khronos.egl.EGL10;
  * Holds EGL state and utility methods for handling an egl 1.0 EGLContext, an EGLDisplay,
  * and an EGLSurface.
  */
-public abstract class EglBase {
+@SuppressWarnings("StaticOrDefaultInterfaceMethod")
+public interface EglBase {
   // EGL wrapper for an actual EGLContext.
   public static class Context {}
 
@@ -33,9 +34,9 @@ public abstract class EglBase {
   // https://android.googlesource.com/platform/frameworks/base/+/master/opengl/java/android/opengl/EGL14.java
   // This is similar to how GlSurfaceView does:
   // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/5.1.1_r1/android/opengl/GLSurfaceView.java#760
-  private static final int EGL_OPENGL_ES2_BIT = 4;
+  public static final int EGL_OPENGL_ES2_BIT = 4;
   // Android-specific extension.
-  private static final int EGL_RECORDABLE_ANDROID = 0x3142;
+  public static final int EGL_RECORDABLE_ANDROID = 0x3142;
 
   // clang-format off
   public static final int[] CONFIG_PLAIN = {
@@ -140,32 +141,34 @@ public abstract class EglBase {
     return new EglBase14(new EglBase14.Context(sharedContext), configAttributes);
   }
 
-  public abstract void createSurface(Surface surface);
+  void createSurface(Surface surface);
 
   // Create EGLSurface from the Android SurfaceTexture.
-  public abstract void createSurface(SurfaceTexture surfaceTexture);
+  void createSurface(SurfaceTexture surfaceTexture);
 
   // Create dummy 1x1 pixel buffer surface so the context can be made current.
-  public abstract void createDummyPbufferSurface();
+  void createDummyPbufferSurface();
 
-  public abstract void createPbufferSurface(int width, int height);
+  void createPbufferSurface(int width, int height);
 
-  public abstract Context getEglBaseContext();
+  Context getEglBaseContext();
 
-  public abstract boolean hasSurface();
+  boolean hasSurface();
 
-  public abstract int surfaceWidth();
+  int surfaceWidth();
 
-  public abstract int surfaceHeight();
+  int surfaceHeight();
 
-  public abstract void releaseSurface();
+  void releaseSurface();
 
-  public abstract void release();
+  void release();
 
-  public abstract void makeCurrent();
+  void makeCurrent();
 
   // Detach the current EGL context, so that it can be made current on another thread.
-  public abstract void detachCurrent();
+  void detachCurrent();
 
-  public abstract void swapBuffers();
+  void swapBuffers();
+
+  void swapBuffers(long presentationTimeStampNs);
 }