Rename spherical/Utils class to GlUtil

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=207525621

library/ui/src/main/java/com/google/android/exoplayer2/ui/spherical/Utils.java → library/ui/src/main/java/com/google/android/exoplayer2/ui/spherical/GlUtil.java

@@ -30,11 +30,11 @@ import java.nio.FloatBuffer;
 import java.nio.IntBuffer;
 import java.nio.IntBuffer;
 
 
 /** GL utility methods. */
 /** GL utility methods. */
-/*package*/ final class Utils {
+/*package*/ final class GlUtil {
   private static final String TAG = "Spherical.Utils";
   private static final String TAG = "Spherical.Utils";
 
 
   /** Class only contains static methods. */
   /** Class only contains static methods. */
-  private Utils() {}
+  private GlUtil() {}
 
 
   /**
   /**
    * If there is an OpenGl error, logs the error and if {@link
    * If there is an OpenGl error, logs the error and if {@link

library/ui/src/main/java/com/google/android/exoplayer2/ui/spherical/Mesh.java

@@ -15,7 +15,7 @@
  */
  */
 package com.google.android.exoplayer2.ui.spherical;
 package com.google.android.exoplayer2.ui.spherical;
 
 
-import static com.google.android.exoplayer2.ui.spherical.Utils.checkGlError;
+import static com.google.android.exoplayer2.ui.spherical.GlUtil.checkGlError;
 
 
 import android.annotation.TargetApi;
 import android.annotation.TargetApi;
 import android.opengl.GLES11Ext;
 import android.opengl.GLES11Ext;
@@ -126,12 +126,12 @@ import java.nio.FloatBuffer;
   /** Used by static constructors. */
   /** Used by static constructors. */
   private Mesh(float[] vertexData) {
   private Mesh(float[] vertexData) {
     vertixCount = vertexData.length / COORDS_PER_VERTEX;
     vertixCount = vertexData.length / COORDS_PER_VERTEX;
-    vertexBuffer = Utils.createBuffer(vertexData);
+    vertexBuffer = GlUtil.createBuffer(vertexData);
   }
   }
 
 
   /** Initializes of the GL components. */
   /** Initializes of the GL components. */
   /* package */ void init() {
   /* package */ void init() {
-    program = Utils.compileProgram(VERTEX_SHADER_CODE, FRAGMENT_SHADER_CODE);
+    program = GlUtil.compileProgram(VERTEX_SHADER_CODE, FRAGMENT_SHADER_CODE);
     mvpMatrixHandle = GLES20.glGetUniformLocation(program, "uMvpMatrix");
     mvpMatrixHandle = GLES20.glGetUniformLocation(program, "uMvpMatrix");
     positionHandle = GLES20.glGetAttribLocation(program, "aPosition");
     positionHandle = GLES20.glGetAttribLocation(program, "aPosition");
     texCoordsHandle = GLES20.glGetAttribLocation(program, "aTexCoords");
     texCoordsHandle = GLES20.glGetAttribLocation(program, "aTexCoords");

library/ui/src/main/java/com/google/android/exoplayer2/ui/spherical/SceneRenderer.java

@@ -15,7 +15,7 @@
  */
  */
 package com.google.android.exoplayer2.ui.spherical;
 package com.google.android.exoplayer2.ui.spherical;
 
 
-import static com.google.android.exoplayer2.ui.spherical.Utils.checkGlError;
+import static com.google.android.exoplayer2.ui.spherical.GlUtil.checkGlError;
 
 
 import android.graphics.SurfaceTexture;
 import android.graphics.SurfaceTexture;
 import android.opengl.GLES20;
 import android.opengl.GLES20;
@@ -49,7 +49,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
     GLES20.glClearColor(0.5f, 0.5f, 0.5f, 1.0f);
     GLES20.glClearColor(0.5f, 0.5f, 0.5f, 1.0f);
     checkGlError();
     checkGlError();
 
 
-    textureId = Utils.createExternalTexture();
+    textureId = GlUtil.createExternalTexture();
     surfaceTexture = new SurfaceTexture(textureId);
     surfaceTexture = new SurfaceTexture(textureId);
     surfaceTexture.setOnFrameAvailableListener(surfaceTexture -> frameAvailable.set(true));
     surfaceTexture.setOnFrameAvailableListener(surfaceTexture -> frameAvailable.set(true));
     return surfaceTexture;
     return surfaceTexture;