[Cronet] Fix SdchTest.DictionaryAddedObserver

components/cronet/android/test/javatests/src/org/chromium/net/SdchTest.java

Index: components/cronet/android/test/javatests/src/org/chromium/net/SdchTest.java
diff --git a/components/cronet/android/test/javatests/src/org/chromium/net/SdchTest.java b/components/cronet/android/test/javatests/src/org/chromium/net/SdchTest.java
index 418748fac9e6acfa7009a461147a59ef8d303d13..00a505e9fbe154a9bab97fd5ce4777f40f772de5 100644
--- a/components/cronet/android/test/javatests/src/org/chromium/net/SdchTest.java
+++ b/components/cronet/android/test/javatests/src/org/chromium/net/SdchTest.java
@@ -147,10 +147,11 @@ public class SdchTest extends CronetTestBase {
     }
 
     private static class DictionaryAddedObserver extends SdchObserver {
-        ConditionVariable mBlock = new ConditionVariable();
+        private final ConditionVariable mBlock;
 
         public DictionaryAddedObserver(String targetUrl, long contextAdapter) {
             super(targetUrl, contextAdapter);
+            mBlock = new ConditionVariable();
         }
 
         @Override