Mark WebappSplashScreenIconTest#testShowSplashIcon as flaky

chrome/android/javatests/src/org/chromium/chrome/browser/webapps/WebappSplashScreenIconTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/webapps/WebappSplashScreenIconTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/webapps/WebappSplashScreenIconTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/webapps/WebappSplashScreenIconTest.java
index 4624f86e2f8007e9f35eaf98d5073755f000025c..d8f16f5f658a4464b1271d81cbcef06b97316a97 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/webapps/WebappSplashScreenIconTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/webapps/WebappSplashScreenIconTest.java
@@ -7,6 +7,7 @@
 import android.content.Intent;
 import android.graphics.Bitmap;
 import android.graphics.drawable.BitmapDrawable;
+import android.test.FlakyTest;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.view.ViewGroup;
 import android.widget.ImageView;
@@ -38,7 +39,11 @@ protected void setUp() throws Exception {
         startWebappActivity();
     }
 
-    @SmallTest
+    /**
+     * Marked as flaky on http://crbug.com/554929
+     * @SmallTest
+     */
+    @FlakyTest
     @Feature({"Webapps"})
     public void testShowSplashIcon() {
         ViewGroup splashScreen = getActivity().getSplashScreenForTests();