Marking the following tests as flaky....

chrome_frame/test/chrome_frame_unittests.cc

 // Copyright (c) 2006-2008 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 <windows.h>
 #include <stdarg.h>
 
 // IShellWindows includes.  Unfortunately we can't keep these in
 // alphabetic order since exdisp will bark if some interfaces aren't fully
 // defined.
 #include <mshtml.h>
@@ skipping 1366 matching lines @@
   ASSERT_TRUE(mock.web_browser2() != NULL);
 
   loop.RunFor(kChromeFrameLongNavigationTimeoutInSeconds);
 
   mock.Uninitialize();
   chrome_frame_test::CloseAllIEWindows();
 }
 
 const wchar_t kChromeFrameFullTabModeKeyEventUrl[] = L"files/keyevent.html";
 
-TEST_F(ChromeFrameTestWithWebServer, FullTabModeIE_ChromeFrameKeyboardTest) {
+// Marking this test FLAKY as it fails at times on the buildbot.
+// http://code.google.com/p/chromium/issues/detail?id=26549
+TEST_F(ChromeFrameTestWithWebServer, FLAKY_FullTabModeIE_ChromeFrameKeyboardTest) {
   chrome_frame_test::TimedMsgLoop loop;
 
   ASSERT_TRUE(LaunchBrowser(IE, kChromeFrameFullTabModeKeyEventUrl));
 
   // Allow some time for chrome to be launched.
   loop.RunFor(kChromeFrameLaunchDelay);
 
   HWND renderer_window = chrome_frame_test::GetChromeRendererWindow();
   EXPECT_TRUE(IsWindow(renderer_window));
 
@@ skipping 137 matching lines @@
   chrome_frame_test::CloseAllIEWindows();
 }
 
 const wchar_t kAnchorUrl[] = L"http://localhost:1337/files/anchor.html";
 const wchar_t kAnchor1Url[] = L"http://localhost:1337/files/anchor.html#a1";
 const wchar_t kAnchor2Url[] = L"http://localhost:1337/files/anchor.html#a2";
 const wchar_t kAnchor3Url[] = L"http://localhost:1337/files/anchor.html#a3";
 
 // Full tab mode back/forward test
 // Launch and navigate chrome frame to a set of URLs and test back forward
-TEST_F(ChromeFrameTestWithWebServer, FullTabModeIE_BackForwardAnchor) {
+// Marking this test FLAKY as it fails at times on the buildbot.
+// http://code.google.com/p/chromium/issues/detail?id=26549
+TEST_F(ChromeFrameTestWithWebServer, FLAKY_FullTabModeIE_BackForwardAnchor) {
   const char tab_enter_keystrokes[] = { VK_TAB, VK_RETURN, 0 };
   static const std::string tab_enter(tab_enter_keystrokes);
   chrome_frame_test::TimedMsgLoop loop;
   CComObjectStackEx<MockWebBrowserEventSink> mock;
   ::testing::InSequence sequence;   // Everything in sequence
 
   // Back/Forward state at this point:
   // Back: 0
   // Forward: 0
   EXPECT_CALL(mock, OnBeforeNavigate2(_, testing::Field(&VARIANT::bstrVal,
@@ skipping 207 matching lines @@
   chrome_frame_test::TimedMsgLoop loop;
 
   ASSERT_TRUE(LaunchBrowser(IE, kChromeFrameFullTabModeDeleteCookieTest));
 
   loop.RunFor(kChromeFrameLongNavigationTimeoutInSeconds);
 
   chrome_frame_test::CloseAllIEWindows();
   ASSERT_TRUE(CheckResultFile(L"FullTab_DeleteCookieTest", "OK"));
 }