Browser Fixes.

- Move the browser targeted verion to SDK 19.
- Remove hack to create dummy webview to call into
  singleton classes and use Engine class.
- Add missing methods to compile for API 19.

Change-Id: Ie765921f1227eb5de314ed29c5ce909bee6aea93
diff --git a/src/com/android/browser/BrowserPreferencesPage.java b/src/com/android/browser/BrowserPreferencesPage.java
index ebc08a4..9e19d11 100644
--- a/src/com/android/browser/BrowserPreferencesPage.java
+++ b/src/com/android/browser/BrowserPreferencesPage.java
@@ -26,7 +26,10 @@
 import com.android.browser.preferences.BandwidthPreferencesFragment;
 import com.android.browser.preferences.DebugPreferencesFragment;
 
+import java.util.Arrays;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 public class BrowserPreferencesPage extends PreferenceActivity {
 
@@ -99,4 +102,19 @@
         return intent;
     }
 
+    private static final Set<String> sKnownFragments = new HashSet<String>(Arrays.asList(
+        "com.android.browser.preferences.GeneralPreferencesFragment",
+        "com.android.browser.preferences.PrivacySecurityPreferencesFragment",
+        "com.android.browser.preferences.AccessibilityPreferencesFragment",
+        "com.android.browser.preferences.AdvancedPreferencesFragment",
+        "com.android.browser.preferences.BandwidthPreferencesFragment",
+        "com.android.browser.preferences.LabPreferencesFragment",
+        "com.android.browser.preferences.AboutPreferencesFragment"));
+
+    @Override
+    protected boolean isValidFragment(String fragmentName) {
+        return sKnownFragments.contains(fragmentName);
+    }
+
+
 }