Move JavaScriptDialogManager, JavascriptAppModalDialogViews to components/app_modal_dialogs

components/app_modal_dialogs/native_app_modal_dialog.h

Index: components/app_modal_dialogs/native_app_modal_dialog.h
diff --git a/components/app_modal_dialogs/native_app_modal_dialog.h b/components/app_modal_dialogs/native_app_modal_dialog.h
index 88db7639a4ecc3e2e52e163bc494eaa621e8ace0..0d46659beb6da493036700ec17483e4dcc9ab038 100644
--- a/components/app_modal_dialogs/native_app_modal_dialog.h
+++ b/components/app_modal_dialogs/native_app_modal_dialog.h
@@ -27,11 +27,6 @@ class NativeAppModalDialog {
   // Accepts or cancels the dialog.
   virtual void AcceptAppModalDialog() = 0;
   virtual void CancelAppModalDialog() = 0;
-
-  // Creates an app modal dialog for a JavaScript prompt.
-  static NativeAppModalDialog* CreateNativeJavaScriptPrompt(
-      JavaScriptAppModalDialog* dialog,
-      gfx::NativeWindow parent_window);
 };
 
 #endif  // COMPONENTS_APP_MODAL_DIALOGS_NATIVE_APP_MODAL_DIALOG_H_