build/android lint suppressions needed for Android SDK roll.

This is only part of the suppressions needed for a full compile, I'm splitting them up into separate CLs to make OWNERS review easier.

BUG=623989

Review-Url: https://codereview.chromium.org/2362753005
Cr-Original-Commit-Position: refs/heads/master@{#420871}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 0922fe51e2ce01ab7dc1644d81bb15801a41286a

android/incremental_install/java/org/chromium/incrementalinstall/ClassLoaderPatcher.java

@@ -4,6 +4,7 @@
 
 package org.chromium.incrementalinstall;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.os.Build;
 import android.util.Log;
@@ -40,6 +41,10 @@ final class ClassLoaderPatcher {
     /**
      * Loads all dex files within |dexDir| into the app's ClassLoader.
      */
+    @SuppressLint({
+            "SetWorldReadable",
+            "SetWorldWritable",
+            })
     void loadDexFiles(File dexDir) throws ReflectiveOperationException, FileNotFoundException {
         Log.i(TAG, "Installing dex files from: " + dexDir);
         File[] dexFilesArr = dexDir.listFiles();
@@ -100,6 +105,7 @@ final class ClassLoaderPatcher {
     /**
      * Sets up all libraries within |libDir| to be loadable by System.loadLibrary().
      */
+    @SuppressLint("SetWorldReadable")
     void importNativeLibs(File libDir) throws ReflectiveOperationException, IOException {
         Log.i(TAG, "Importing native libraries from: " + libDir);
         if (!libDir.exists()) {
@@ -185,6 +191,7 @@ final class ClassLoaderPatcher {
         }
     }
 
+    @SuppressLint("SetWorldReadable")
     private static boolean copyIfModified(File src, File dest) throws IOException {
         long lastModified = src.lastModified();
         if (dest.exists() && dest.lastModified() == lastModified) {