[headless] Refactor headless devtools client API.

headless/public/domains/types_unittest.cc

 // Copyright 2016 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 "base/json/json_reader.h"
-#include "headless/public/domains/types.h"
+#include "headless/public/devtools/domains/accessibility.h"
+#include "headless/public/devtools/domains/memory.h"
+#include "headless/public/devtools/domains/page.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace headless {
 
 TEST(TypesTest, IntegerProperty) {
   std::unique_ptr<page::NavigateToHistoryEntryParams> object(
       page::NavigateToHistoryEntryParams::Builder().SetEntryId(123).Build());
   EXPECT_TRUE(object);
   EXPECT_EQ(123, object->GetEntryId());
 
@@ skipping 188 matching lines @@
   std::unique_ptr<accessibility::AXValue> clone(object->Clone());
   EXPECT_TRUE(clone);
   EXPECT_EQ(base::Value::TYPE_INTEGER, clone->GetValue()->GetType());
 
   int clone_value;
   EXPECT_TRUE(clone->GetValue()->GetAsInteger(&clone_value));
   EXPECT_EQ(123, clone_value);
 }
 
 }  // namespace headless