Disable some UI tests on Linux due to crash flakiness:...

chrome/browser/download/download_uitest.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 <sstream>
 #include <string>
 
 #include "build/build_config.h"
 #if defined(OS_WIN)
 #include <shlwapi.h>
 #endif
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/platform_thread.h"
 #include "base/string_util.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/browser/automation/url_request_mock_http_job.h"
 #include "chrome/browser/automation/url_request_slow_download_job.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/ui/ui_test.h"
 #include "chrome/test/automation/tab_proxy.h"
 #include "chrome/test/automation/browser_proxy.h"
 #include "net/base/net_util.h"
 #include "net/url_request/url_request_unittest.h"
 
+#if defined(OS_LINUX)
+#define MAYBE_UnknownSize DISABLED_UnknownSize
+#define MAYBE_IncognitoDownload DISABLED_IncognitoDownload
+#else
+#define MAYBE_UnknownSize UnknownSize
+#define MAYBE_IncognitoDownload IncognitoDownload
+#endif
+
 namespace {
 
 const wchar_t kDocRoot[] = L"chrome/test/data";
 
 #if defined(OS_WIN)
 // Checks if the volume supports Alternate Data Streams. This is required for
 // the Zone Identifier implementation.
 bool VolumeSupportsADS(const std::wstring path) {
   wchar_t drive[MAX_PATH] = {0};
   wcscpy_s(drive, MAX_PATH, path.c_str());
@@ skipping 223 matching lines @@
   EXPECT_TRUE(browser->IsShelfVisible(&shelf_visible));
   ASSERT_FALSE(shelf_visible);
 }
 
 // UnknownSize and KnownSize are tests which depend on
 // URLRequestSlowDownloadJob to serve content in a certain way. Data will be
 // sent in two chunks where the first chunk is 35K and the second chunk is 10K.
 // The test will first attempt to download a file; but the server will "pause"
 // in the middle until the server receives a second request for
 // "download-finish.  At that time, the download will finish.
-TEST_F(DownloadTest, UnknownSize) {
+// Flaky on Linux: http://code.google.com/p/chromium/issues/detail?id=14746
+TEST_F(DownloadTest, MAYBE_UnknownSize) {
   GURL url(URLRequestSlowDownloadJob::kUnknownSizeUrl);
   FilePath filename;
   net::FileURLToFilePath(url, &filename);
   filename = filename.BaseName();
   RunSizeTest(url, L"32.0 KB - " + filename.ToWStringHack(),
               L"100% - " + filename.ToWStringHack());
 }
 
 // http://b/1158253
 TEST_F(DownloadTest, DISABLED_KnownSize) {
   GURL url(URLRequestSlowDownloadJob::kKnownSizeUrl);
   FilePath filename;
   net::FileURLToFilePath(url, &filename);
   filename = filename.BaseName();
   RunSizeTest(url, L"71% - " + filename.ToWStringHack(),
               L"100% - " + filename.ToWStringHack());
 }
 
 // Test that when downloading an item in Incognito mode, we don't crash when
 // closing the last Incognito window (http://crbug.com/13983).
-TEST_F(DownloadTest, IncognitoDownload) {
+TEST_F(DownloadTest, MAYBE_IncognitoDownload) {
   // Open a regular window and sanity check default values for window / tab
   // count and shelf visibility.
   scoped_refptr<BrowserProxy> browser(automation()->GetBrowserWindow(0));
   int window_count = 0;
   automation()->GetBrowserWindowCount(&window_count);
   ASSERT_EQ(1, window_count);
   EXPECT_EQ(1, GetTabCount());
   bool is_shelf_visible;
   browser->IsShelfVisible(&is_shelf_visible);
   EXPECT_FALSE(is_shelf_visible);
@@ skipping 20 matching lines @@
   ASSERT_EQ(1, window_count);
 
   // Verify that the regular window does not have a download shelf.
   browser->IsShelfVisible(&is_shelf_visible);
   EXPECT_FALSE(is_shelf_visible);
 
   CleanUpDownload(file);
 }
 
 }  // namespace