Revert "Add support for closing Android Shell instances from Java."

content/shell/android/java/src/org/chromium/content_shell/Shell.java

Index: content/shell/android/java/src/org/chromium/content_shell/Shell.java
diff --git a/content/shell/android/java/src/org/chromium/content_shell/Shell.java b/content/shell/android/java/src/org/chromium/content_shell/Shell.java
index 3a442a08485cd29e26478753d1391e1292efe5af..1ec5919eae826ce8dd5eb6662cc2e8b2db5c24c6 100644
--- a/content/shell/android/java/src/org/chromium/content_shell/Shell.java
+++ b/content/shell/android/java/src/org/chromium/content_shell/Shell.java
@@ -49,7 +49,6 @@ public class Shell extends LinearLayout {
 
     private ClipDrawable mProgressDrawable;
 
-    private long mNativeShell;
     private ContentViewRenderView mContentViewRenderView;
     private WindowAndroid mWindow;
 
@@ -81,41 +80,13 @@ public class Shell extends LinearLayout {
     }
 
     /**
-     * Initializes the Shell for use.
-     *
-     * @param nativeShell The pointer to the native Shell object.
      * @param window The owning window for this shell.
      */
-    public void initialize(long nativeShell, WindowAndroid window) {
-        mNativeShell = nativeShell;
+    public void setWindow(WindowAndroid window) {
         mWindow = window;
     }
 
     /**
-     * Closes the shell and cleans up the native instance, which will handle destroying all
-     * dependencies.
-     */
-    public void close() {
-        if (mNativeShell == 0) return;
-        nativeCloseShell(mNativeShell);
-    }
-
-    @CalledByNative
-    private void onNativeDestroyed() {
-        mWindow = null;
-        mNativeShell = 0;
-        mContentView.destroy();
-    }
-
-    /**
-     * @return Whether the Shell has been destroyed.
-     * @see #onNativeDestroyed()
-     */
-    public boolean isDestroyed() {
-        return mNativeShell == 0;
-    }
-
-    /**
      * @return Whether or not the Shell is loading content.
      */
     public boolean isLoading() {
@@ -271,6 +242,4 @@ public class Shell extends LinearLayout {
             imm.hideSoftInputFromWindow(mUrlTextView.getWindowToken(), 0);
         }
     }
-
-    private static native void nativeCloseShell(long shellPtr);
 }