weblayer: makes WebLayer.init() work after creation

Prior to this patch WebLayer.init() must be called before
super.onCreate() (from FragmentActivity), otherwise we hit NPEs.

Two changes are necessary to get this working:
. Remove call to ApplicationStatus.initialize().
. Supply false to ActivityWindowAndroid so that it doesn't listen to
  the activity.

BUG=none
TEST=none

Change-Id: I24a80de016b9a8433f883f9d9e9a5c12808abc91
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1810252Reviewed-by: Bo <boliu@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#697737}

weblayer/browser/java/org/chromium/weblayer_private/BrowserControllerImpl.java

@@ -73,7 +73,10 @@ public final class BrowserControllerImpl extends IBrowserController.Stub {
                 return implContext.getResources();
             }
         };
-        mWindowAndroid = new ActivityWindowAndroid(context);
+        // Use false to disable listening to activity state.
+        // TODO: this should *not* use ActivityWindowAndroid as that relies on Activity, and this
+        // code should not assume it is supplied an Activity.
+        mWindowAndroid = new ActivityWindowAndroid(context, false);
         mContentViewRenderView = new ContentViewRenderView(context);
 
         mContentViewRenderView.onNativeLibraryLoaded(

weblayer/browser/java/org/chromium/weblayer_private/WebLayerImpl.java

@@ -11,7 +11,6 @@ import android.content.res.Resources;
 import android.os.IBinder;
 import android.util.AndroidRuntimeException;
 
-import org.chromium.base.ApplicationStatus;
 import org.chromium.base.CommandLine;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
@@ -52,7 +51,6 @@ public final class WebLayerImpl extends IWebLayer.Stub {
         });
         ResourceBundle.setNoAvailableLocalePaks();
         PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
-        ApplicationStatus.initialize(application);
 
         ChildProcessCreationParams.set(implContext.getPackageName(), true /* isExternalService */,
                 LibraryProcessType.PROCESS_CHILD, true /* bindToCaller */,

weblayer/shell/android/shell_apk/src/org/chromium/weblayer/shell/WebLayerShellActivity.java

@@ -64,11 +64,11 @@ public class WebLayerShellActivity extends FragmentActivity {
 
     @Override
     protected void onCreate(final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
         // Only call init for main process.
         WebLayer.getInstance().init(getApplication());
 
-        super.onCreate(savedInstanceState);
-
         LinearLayout mainView = new LinearLayout(this);
         int viewId = View.generateViewId();
         mainView.setId(viewId);