Revert "Refactor ContentViewClient (6/6)"

ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java

Index: ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java
diff --git a/ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java b/ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java
index d99f612d6b2770436574b97a96f73aef32a66a33..e4eb367d0688f66415677b543de496da4f074b65 100644
--- a/ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java
+++ b/ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java
@@ -123,17 +123,6 @@ public abstract class ViewAndroidDelegate {
     public void onBottomControlsChanged(float bottomControlsOffsetY, float bottomContentOffsetY) {}
 
     /**
-     * Returns the bottom system window inset in pixels. The system window inset represents the area
-     * of a full-screen window that is partially or fully obscured by the status bar, navigation
-     * bar, IME or other system windows.
-     * @return The bottom system window inset.
-     */
-    @CalledByNative
-    public int getSystemWindowInsetBottom() {
-        return 0;
-    }
-
-    /**
      * @return container view that the anchor views are added to. May be null.
      */
     @CalledByNative