[Android] Implement WebSettings.{get|set}Allow{Content|File}Access.

content/public/android/java/src/org/chromium/content/browser/ContentSettings.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentSettings.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentSettings.java b/content/public/android/java/src/org/chromium/content/browser/ContentSettings.java
index 90e4d8de66edec1fe285bea8cd577a3d8ac6bf3e..76cc03e16ee8489212dcf1aa4442655f83c006eb 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentSettings.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentSettings.java
@@ -82,6 +82,8 @@ public class ContentSettings {
     private boolean mJavaScriptCanOpenWindowsAutomatically = false;
     private PluginState mPluginState = PluginState.OFF;
     private boolean mDomStorageEnabled = false;
+    private boolean mAllowFileUrlAccess = true;
+    private boolean mAllowContentUrlAccess = true;
 
     // Not accessed by the native side.
     private String mDefaultUserAgent = "";
@@ -301,6 +303,51 @@ public class ContentSettings {
         return mDisplayZoomControls;
     }
 
+    /**
+     * Enables or disables file access within ContentView. File access is enabled by
+     * default.  Note that this enables or disables file system access only.
+     * Assets and resources are still accessible using file:///android_asset and
+     * file:///android_res.
+     */
+    public synchronized void setAllowFileAccess(boolean allow) {
+        assert mCanModifySettings;
+        if (mAllowFileUrlAccess != allow) {
+            mAllowFileUrlAccess = allow;
+            sendSyncMessage();
+        }
+    }
+
+    /**
+     * Gets whether this ContentView supports file access.
+     *
+     * @see #setAllowFileAccess
+     */
+    public synchronized boolean getAllowFileAccess() {
+        return mAllowFileUrlAccess;
+    }
+
+    /**
+     * Enables or disables content URL access within ContentView.  Content URL
+     * access allows ContentView to load content from a content provider installed
+     * in the system. The default is enabled.
+     */
+    public synchronized void setAllowContentAccess(boolean allow) {
+        assert mCanModifySettings;
+        if (mAllowContentUrlAccess != allow) {
+            mAllowContentUrlAccess = allow;
+            sendSyncMessage();
+        }
+    }
+
+    /**
+     * Gets whether this ContentView supports content URL access.
+     *
+     * @see #setAllowContentAccess
+     */
+    public synchronized boolean getAllowContentAccess() {
+        return mAllowContentUrlAccess;
+    }
+
     boolean supportsMultiTouchZoom() {
         return mSupportZoom && mBuiltInZoomControls;
     }