Provide a common interface for all Android app resources.

content/public/android/java/org/chromium/content/app/AppResource.java

Index: content/public/android/java/org/chromium/content/app/AppResource.java
diff --git a/content/public/android/java/org/chromium/content/app/AppResource.java b/content/public/android/java/org/chromium/content/app/AppResource.java
new file mode 100644
index 0000000000000000000000000000000000000000..4178702cf5aaa9d16079b566b02ac1a3f509a0b0
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+++ b/content/public/android/java/org/chromium/content/app/AppResource.java
@@ -0,0 +1,40 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.content.app;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+
+/**
+ * Interface to list and expose any required Android app resources.
+ * All resources must be registered before instantiating ContentView objects.
+ */
+public class AppResource {
+    /** Array resource containing the official command line arguments. */
+    public static int ARRAY_OFFICIAL_COMMAND_LINE;
+
+    /** Dimension of the radius used in the link preview overlay. */
+    public static int DIMENSION_LINK_PREVIEW_OVERLAY_RADIUS;
+
+    /** Drawable resource for the link preview popup overlay. */
+    public static int DRAWABLE_LINK_PREVIEW_POPUP_OVERLAY;
+
+    /**
+     * Iterates through all the resources ids and verifies they have values other than zero.
+     * @return true if all the resources have been registered.
+     */
+    public static boolean verifyResourceRegistration() {
+        Field[] fields = AppResource.class.getDeclaredFields();
+        for (Field field : fields) {
+            try {
+              if (field.getType().equals(int.class) && Modifier.isStatic(field.getModifiers())) {
+                  if (field.getInt(null) == 0) return false;
+              }
+            } catch (IllegalAccessException e) {
+            }
+        }
+        return true;
+    }
+}