Fix various errorprone warnings and errors.

http://errorprone.info/bugpattern/SynchronizeOnNonFinalField
android_webview/java/src/org/chromium/android_webview/AwMessagePortService.java
android_webview/javatests/src/org/chromium/android_webview/test/PostMessageTest.java
android_webview/javatests/src/org/chromium/android_webview/test/util/JavascriptEventObserver.java
base/test/android/javatests/src/org/chromium/base/test/util/TestThread.java
chrome/android/javatests/src/org/chromium/chrome/browser/autofill/AutofillTestHelper.java
components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java
content/public/android/javatests/src/org/chromium/content/browser/VSyncMonitorTest.java
remoting/android/java/src/org/chromium/chromoting/CardboardDesktopRenderer.java
remoting/android/java/src/org/chromium/chromoting/DesktopView.java
remoting/android/java/src/org/chromium/chromoting/TrackingInputHandler.java

http://errorprone.info/bugpattern/ElementsCountedInLoop
base/android/javatests/src/org/chromium/base/ObserverListTest.java

http://errorprone.info/bugpattern/TypeParameterUnusedInFormals
chrome/android/java/src/org/chromium/chrome/browser/ChromeBrowserProviderClient.java

http://errorprone.info/bugpattern/NarrowingCompoundAssignment
chrome/android/javatests/src/org/chromium/chrome/browser/WebappAuthenticatorTest.java

http://errorprone.info/bugpattern/WaitNotInLoop
chrome/android/javatests/src/org/chromium/chrome/browser/widget/ToolbarProgressBarTest.java

BUG=485599

Review URL: https://codereview.chromium.org/1297073004

Cr-Commit-Position: refs/heads/master@{#344840}

1 files changed, 1 insertions, 1 deletions

diff --git a/components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java b/components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java
index b039d92..30d3213 100644
--- a/components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java
+++ b/components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java
@@ -44,7 +44,7 @@ public class GoogleCloudMessagingV2 {
 
     private Context mContext;
     private PendingIntent mAppPendingIntent = null;
-    private Object mAppPendingIntentLock = new Object();
+    private final Object mAppPendingIntentLock = new Object();
 
     public GoogleCloudMessagingV2(Context context) {
         mContext = context;