Disable AppApiTest.AppProcessRedirectBack on Linux.

chrome/browser/extensions/app_process_apitest.cc

Index: chrome/browser/extensions/app_process_apitest.cc
diff --git a/chrome/browser/extensions/app_process_apitest.cc b/chrome/browser/extensions/app_process_apitest.cc
index 9b458049484606d2903d546d3a3a0b72e6febc18..515018f0e5a14f9649893ecd6498bb0f9ae4df53 100644
--- a/chrome/browser/extensions/app_process_apitest.cc
+++ b/chrome/browser/extensions/app_process_apitest.cc
@@ -377,8 +377,13 @@ IN_PROC_BROWSER_TEST_F(AppApiTest, MAYBE_BookmarkAppGetsNormalProcess) {
 // 3. page2 redirects back to a page in the app
 // The final navigation should end up in the app process.
 // See http://crbug.com/61757
-// Flaky - see http://crbug.com/341898
-IN_PROC_BROWSER_TEST_F(AppApiTest, FLAKY_AppProcessRedirectBack) {
+// Flaky on Linux.  http://crbug.com/341898
+#if defined(OS_LINUX)
+#define MAYBE_AppProcessRedirectBack DISABLED_AppProcessRedirectBack
+#else
+#define MAYBE_AppProcessRedirectBack AppProcessRedirectBack
+#endif
+IN_PROC_BROWSER_TEST_F(AppApiTest, MAYBE_AppProcessRedirectBack) {
   host_resolver()->AddRule("*", "127.0.0.1");
   ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());