Fix flaky brailleDisplayPrivateApi tests and reenable them.

chrome/browser/extensions/api/braille_display_private/braille_display_private_apitest.cc

 // Copyright 2013 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.
 
 #ifndef USE_BRLAPI
 #error This test requires brlapi.
 #endif
 
 #include <deque>
 
@@ skipping 159 matching lines @@
 
  private:
   scoped_ptr<BrlapiConnection> CreateBrlapiConnection() {
     return scoped_ptr<BrlapiConnection>(
         new MockBrlapiConnection(&connection_data_));
   }
 
   StubBrailleController stub_braille_controller_;
 };
 
-IN_PROC_BROWSER_TEST_F(BrailleDisplayPrivateApiTest, DISABLED_WriteDots) {
+IN_PROC_BROWSER_TEST_F(BrailleDisplayPrivateApiTest, WriteDots) {
   connection_data_.display_size = 11;
   ASSERT_TRUE(RunComponentExtensionTest("braille_display_private/write_dots"))
       << message_;
   ASSERT_EQ(3U, connection_data_.written_content.size());
   const std::string expected_content(connection_data_.display_size, '\0');
   for (size_t i = 0; i < connection_data_.written_content.size(); ++i) {
     ASSERT_EQ(std::string(
         connection_data_.display_size,
         static_cast<char>(i)),
                  connection_data_.written_content[i])
         << "String " << i << " doesn't match";
   }
 }
 
-IN_PROC_BROWSER_TEST_F(BrailleDisplayPrivateApiTest, DISABLED_KeyEvents) {
+IN_PROC_BROWSER_TEST_F(BrailleDisplayPrivateApiTest, KeyEvents) {
   connection_data_.display_size = 11;
   connection_data_.pending_keys.push_back(
       BRLAPI_KEY_TYPE_CMD | BRLAPI_KEY_CMD_LNUP);
   connection_data_.pending_keys.push_back(
       BRLAPI_KEY_TYPE_CMD | BRLAPI_KEY_CMD_LNDN);
   ASSERT_TRUE(RunComponentExtensionTest("braille_display_private/key_events"));
 }
 
 IN_PROC_BROWSER_TEST_F(BrailleDisplayPrivateApiTest, DisplayStateChanges) {
   connection_data_.display_size = 11;
@@ skipping 100 matching lines @@
   DismissLockScreen(tester.get());
   signin_api.OnKeyEvent(key_event);
   user_api.OnKeyEvent(key_event);
   EXPECT_EQ(1, signin_delegate->GetEventCount());
   EXPECT_EQ(2, user_delegate->GetEventCount());
 }
 
 }  // namespace braille_display_private
 }  // namespace api
 }  // namespace extensions