Add bookmarks search activity to browser.

This activity is never started from the browser. Its purpose
is to provide bookmark suggestions to global search (through
its searchable meta-data), and to handle the intents produced
by clicking such suggestions.
diff --git a/res/xml/bookmarks_searchable.xml b/res/xml/bookmarks_searchable.xml
new file mode 100644
index 0000000..1508606
--- /dev/null
+++ b/res/xml/bookmarks_searchable.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+  
+          http://www.apache.org/licenses/LICENSE-2.0
+  
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<searchable xmlns:android="http://schemas.android.com/apk/res/android"
+    android:label="@string/bookmarks_search"
+    android:searchButtonText="@string/search_button_text"
+    android:searchMode="queryRewriteFromData"
+    android:inputType="textUri"
+    android:imeOptions="actionGo"
+
+    android:searchSuggestAuthority="browser"
+    android:searchSuggestPath="bookmarks"
+    android:searchSuggestSelection="url LIKE ?"
+    android:searchSuggestIntentAction="android.intent.action.VIEW"
+/>