Remove redundant field initialization in Java code.

ui/android/java/src/org/chromium/ui/base/WindowAndroid.java

Index: ui/android/java/src/org/chromium/ui/base/WindowAndroid.java
diff --git a/ui/android/java/src/org/chromium/ui/base/WindowAndroid.java b/ui/android/java/src/org/chromium/ui/base/WindowAndroid.java
index 2e2037f156d5d5b463f31646a0c2b6c0e0a6014d..88f64bda1a6cb1e0746abc7bd904cc7b1bebef03 100644
--- a/ui/android/java/src/org/chromium/ui/base/WindowAndroid.java
+++ b/ui/android/java/src/org/chromium/ui/base/WindowAndroid.java
@@ -71,7 +71,7 @@ public class WindowAndroid {
     }
 
     // Native pointer to the c++ WindowAndroid object.
-    private long mNativeWindowAndroid = 0;
+    private long mNativeWindowAndroid;
     private final VSyncMonitor mVSyncMonitor;
     private final DisplayAndroid mDisplayAndroid;
 
@@ -97,7 +97,7 @@ public class WindowAndroid {
 
     private ViewGroup mKeyboardAccessoryView;
 
-    protected boolean mIsKeyboardShowing = false;
+    protected boolean mIsKeyboardShowing;
 
     // System accessibility service.
     private final AccessibilityManager mAccessibilityManager;