[Android] Upstream WebView.allow{Content|File}Access implementation.

android_webview/java/src/org/chromium/android_webview/AwContents.java

Index: android_webview/java/src/org/chromium/android_webview/AwContents.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContents.java b/android_webview/java/src/org/chromium/android_webview/AwContents.java
index 377e568711bfa966d697b8de9953da2ed4a4fd95..b7995fdf68a686973fd5a26919fcf9631a05b567 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -75,6 +75,18 @@ public class AwContents {
 
         // Called on the IO thread.
         @Override
+        public boolean shouldBlockContentUrls() {
+            return !AwContents.this.mSettings.getAllowContentAccess();
+        }
+
+        // Called on the IO thread.
+        @Override
+        public boolean shouldBlockFileUrls() {
+            return !AwContents.this.mSettings.getAllowFileAccess();
+        }
+
+        // Called on the IO thread.
+        @Override
         public boolean shouldBlockNetworkLoads() {
             return AwContents.this.mSettings.getBlockNetworkLoads();
         }