Disable all the browser_tests that are flaking more than 5% of the time on trybots.

chrome/browser/chromeos/file_manager/file_manager_browsertest.cc

 // Copyright (c) 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.
 
 // Browser test for basic Chrome OS file manager functionality:
 //  - The file list is updated when a file is added externally to the Downloads
 //    folder.
 //  - Selecting a file and copy-pasting it with the keyboard copies the file.
 //  - Selecting a file and pressing delete deletes it.
 
@@ skipping 728 matching lines @@
       public FileManagerBrowserTestBase,
       public ::testing::WithParamInterface<TestParameter> {
   virtual GuestMode GetGuestModeParam() const OVERRIDE {
     return std::tr1::get<0>(GetParam());
   }
   virtual const char* GetTestCaseNameParam() const OVERRIDE {
     return std::tr1::get<1>(GetParam());
   }
 };
 
-IN_PROC_BROWSER_TEST_P(FileManagerBrowserTest, Test) {
+// http://crbug.com/327719
+IN_PROC_BROWSER_TEST_P(FileManagerBrowserTest, DISABLED_Test) {
   StartTest();
 }
 
 // Unlike TEST/TEST_F, which are macros that expand to further macros,
 // INSTANTIATE_TEST_CASE_P is a macro that expands directly to code that
 // stringizes the arguments. As a result, macros passed as parameters (such as
 // prefix or test_case_name) will not be expanded by the preprocessor. To work
 // around this, indirect the macro for INSTANTIATE_TEST_CASE_P, so that the
 // pre-processor will expand macros such as MAYBE_test_name before
 // instantiating the test.
 #define WRAPPED_INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator) \
   INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator)
 
 // Slow tests are disabled on debug build. http://crbug.com/327719
 #if !defined(NDEBUG)
 #define MAYBE_FileDisplay DISABLED_FileDisplay
 #else
 #define MAYBE_FileDisplay FileDisplay
 #endif
 WRAPPED_INSTANTIATE_TEST_CASE_P(
     MAYBE_FileDisplay,
     FileManagerBrowserTest,
     ::testing::Values(TestParameter(NOT_IN_GUEST_MODE, "fileDisplayDownloads"),
                       TestParameter(IN_GUEST_MODE, "fileDisplayDownloads"),
                       TestParameter(NOT_IN_GUEST_MODE, "fileDisplayDrive"),
                       TestParameter(NOT_IN_GUEST_MODE, "fileDisplayMtp")));
 
-// Slow tests are disabled on debug build. http://crbug.com/327719
-#if !defined(NDEBUG)
-#define MAYBE_OpenZipFiles DISABLED_OpenZipFiles
-#else
-#define MAYBE_OpenZipFiles OpenZipFiles
-#endif
+// http://crbug.com/327719
 WRAPPED_INSTANTIATE_TEST_CASE_P(
-    MAYBE_OpenZipFiles,
+    DISABLED_OpenZipFiles,
     FileManagerBrowserTest,
     ::testing::Values(TestParameter(IN_GUEST_MODE, "zipOpenDownloads"),
                       TestParameter(NOT_IN_GUEST_MODE, "zipOpenDownloads"),
                       TestParameter(NOT_IN_GUEST_MODE, "zipOpenDrive")));
 
 // Slow tests are disabled on debug build. http://crbug.com/327719
 #if !defined(NDEBUG)
 #define MAYBE_OpenVideoFiles DISABLED_OpenVideoFiles
 #else
 #define MAYBE_OpenVideoFiles OpenVideoFiles
@@ skipping 673 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(GalleryBrowserTest, ExposureImageOnDrive) {
   AddScript("gallery/photo_editor.js");
   set_test_case_name("exposureImageOnDrive");
   StartTest();
 }
 
 }  // namespace
 }  // namespace file_manager