Update to newer Android Lint and suppress new Lint errors

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

Index: ui/android/java/src/org/chromium/ui/base/Clipboard.java
diff --git a/ui/android/java/src/org/chromium/ui/base/Clipboard.java b/ui/android/java/src/org/chromium/ui/base/Clipboard.java
index fddad5a451279f0fe215d359fe93e3745c8909f3..c8ad3df1e878dd864b4231480c6ae2e68f5bf233 100644
--- a/ui/android/java/src/org/chromium/ui/base/Clipboard.java
+++ b/ui/android/java/src/org/chromium/ui/base/Clipboard.java
@@ -4,6 +4,7 @@
 
 package org.chromium.ui.base;
 
+import android.annotation.SuppressLint;
 import android.content.ClipData;
 import android.content.ClipDescription;
 import android.content.ClipboardManager;
@@ -28,6 +29,8 @@ import org.chromium.ui.widget.Toast;
  */
 @JNINamespace("ui")
 public class Clipboard implements ClipboardManager.OnPrimaryClipChangedListener {
+    // TODO(crbug.com/635567): Fix this properly.
+    @SuppressLint("StaticFieldLeak")
     private static Clipboard sInstance;
 
     // Necessary for coercing clipboard contents to text if they require