Add null check to ImeLollipopTest to address flake

content/public/android/javatests/src/org/chromium/content/browser/input/ImeLollipopTest.java

Index: content/public/android/javatests/src/org/chromium/content/browser/input/ImeLollipopTest.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/input/ImeLollipopTest.java b/content/public/android/javatests/src/org/chromium/content/browser/input/ImeLollipopTest.java
index 2d071f8d52ec3665dc82e0457f87134243abdea3..fbda1ca42d45ff26abe0031bcb5454b583d864a6 100644
--- a/content/public/android/javatests/src/org/chromium/content/browser/input/ImeLollipopTest.java
+++ b/content/public/android/javatests/src/org/chromium/content/browser/input/ImeLollipopTest.java
@@ -88,6 +88,11 @@ public class ImeLollipopTest extends ImeTest {
             @Override
             public boolean isSatisfied() {
                 CursorAnchorInfo info = mInputMethodManagerWrapper.getLastCursorAnchorInfo();
+                if (info != null && info.getComposingText() == null) {
+                    updateFailureReason("info.getCompositingText() returned null");
+                    return false;
+                }
+
                 String actual = (info == null ? "" : info.getComposingText().toString());
                 updateFailureReason("Expected: {" + expected + "}, Actual: {" + actual + "}");
                 return expected.equals(actual);