Disable flaky BrowserSelectFileDialogTest.ModalTest on Linux

chrome/browser/ui/libgtkui/select_file_dialog_interactive_uitest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/macros.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/chrome_select_file_policy.h"
 #include "chrome/browser/ui/libgtkui/select_file_dialog_impl_gtk.h"
 #include "chrome/browser/ui/view_ids.h"
@@ skipping 50 matching lines @@
  private:
   // Dialog box used for opening and saving files.
   scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
 
   DISALLOW_COPY_AND_ASSIGN(FilePicker);
 };
 
 }  // namespace libgtkui
 
 // Leaks in GtkFileChooserDialog. http://crbug.com/537468
-#if defined(ADDRESS_SANITIZER)
+// Flaky on Linux. http://crbug.com/700134
+#if defined(ADDRESS_SANITIZER) || defined(OS_LINUX)
 #define MAYBE_ModalTest DISABLED_ModalTest
 #else
 #define MAYBE_ModalTest ModalTest
 #endif
 // Test that the file-picker is modal.
 IN_PROC_BROWSER_TEST_F(BrowserSelectFileDialogTest, MAYBE_ModalTest) {
   // Bring the native window to the foreground. Returns true on success.
   ASSERT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
   ASSERT_TRUE(browser()->window()->IsActive());
 
@@ skipping 25 matching lines @@
 
   file_picker.Close();
 
   // Run a nested loop until the browser window becomes active.
   views::test::WidgetActivationWaiter wait_active(widget, true);
   wait_active.Wait();
 
   ui_test_utils::ClickOnView(browser(), VIEW_ID_TAB_CONTAINER);
   EXPECT_TRUE(browser()->window()->IsActive());
 }