[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 67848b0596c8c7ca7fadf25fa29f67fab776c5dc..729d27d109acca766bc8619a028ea4621599e8fb 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -73,6 +73,18 @@ 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();
         }