Fix a failing IME test caused by ImeThread

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

Index: content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java b/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
index 9bec9495b9bab03f63130f56ca0db8cb96d42f2f..ca168c79b440f97cd5aa74294072b4397afa2382 100644
--- a/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
+++ b/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
@@ -1505,7 +1505,12 @@ public class ImeTest extends ContentShellTestBase {
         });
     }
 
-    private <T> T runBlockingOnImeThread(Callable<T> c) throws Exception {
+    /**
+     * Run the {@Callable} on IME thread (or UI thread if not applicable).
+     * @param c The callable
+     * @return The result from running the callable.
+     */
+    protected <T> T runBlockingOnImeThread(Callable<T> c) throws Exception {
         return ImeTestUtils.runBlockingOnHandler(mConnectionFactory.getHandler(), c);
     }