Add support to enable EmbeddedSearch API in Android Chrome search results page.

chrome/browser/search/search_android_unittest.cc

+// Copyright 2014 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.
+
+#include "chrome/browser/search/search.h"
+
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace chrome {
+
+namespace {
+
+TEST(SearchTest, EmbeddedSearchAPIEnabled) {
+  EXPECT_EQ(1ul, EmbeddedSearchPageVersion());
+  EXPECT_FALSE(IsInstantExtendedAPIEnabled());
+  CommandLine::ForCurrentProcess()->AppendSwitch(
+      switches::kEnableEmbeddedSearchAPI);
+  EXPECT_EQ(2ul, EmbeddedSearchPageVersion());
+  EXPECT_TRUE(IsInstantExtendedAPIEnabled());
+}
+
+}  // namespace
+
+}  // namespace chrome