Removing few unused methods from CompositorView

This change takes care of removing onLayout, surfaceRedrawNeeded
methods and few and unused members from CompositorView.

BUG=

Review URL: https://codereview.chromium.org/1638303009

Cr-Commit-Position: refs/heads/master@{#372642}

chrome/android/java/src/org/chromium/chrome/browser/compositor/CompositorView.java

@@ -49,7 +49,7 @@
  */
 @JNINamespace("chrome::android")
 public class CompositorView
-        extends SurfaceView implements ContentOffsetProvider, SurfaceHolder.Callback2 {
+        extends SurfaceView implements ContentOffsetProvider, SurfaceHolder.Callback {
     private static final String TAG = "CompositorView";
 
     // Cache objects that should not be created every frame
@@ -145,11 +145,6 @@ && getMeasuredHeight() > MeasureSpec.getSize(heightMeasureSpec)) {
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
     }
 
-    @Override
-    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
-        super.onLayout(changed, left, top, right, bottom);
-    }
-
     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
@@ -238,9 +233,6 @@ public void surfaceDestroyed(SurfaceHolder holder) {
         nativeSurfaceDestroyed(mNativeCompositorView);
     }
 
-    @Override
-    public void surfaceRedrawNeeded(SurfaceHolder holder) {}
-
     @Override
     public void onWindowVisibilityChanged(int visibility) {
         super.onWindowVisibilityChanged(visibility);

chrome/android/java/src/org/chromium/chrome/browser/compositor/CompositorViewHolder.java

@@ -19,7 +19,6 @@
 import android.util.AttributeSet;
 import android.util.Pair;
 import android.view.MotionEvent;
-import android.view.SurfaceHolder;
 import android.view.SurfaceView;
 import android.view.View;
 import android.view.ViewGroup;
@@ -262,13 +261,6 @@ public void setControlContainer(ControlContainer controlContainer) {
         }
     }
 
-    /**
-     * @return The CompositorView.
-     */
-    public SurfaceHolder.Callback2 getSurfaceHolderCallback2() {
-        return mCompositorView;
-    }
-
     /**
      * Reset command line flags. This gets called after the native library finishes
      * loading.