Remove old session history logic.

content/renderer/history_controller_browsertest.cc

-// Copyright 2015 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 "build/build_config.h"
-#include "content/common/site_isolation_policy.h"
-#include "content/public/test/render_view_test.h"
-#include "content/renderer/history_controller.h"
-#include "content/renderer/render_frame_impl.h"
-#include "content/renderer/render_view_impl.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/WebKit/public/web/WebHistoryItem.h"
-
-namespace content {
-
-class HistoryControllerTest : public RenderViewTest {
- public:
-  ~HistoryControllerTest() override {}
-
-  // Create a main frame with a single child frame.
-  void SetUp() override {
-    RenderViewTest::SetUp();
-    LoadHTML("Parent frame <iframe name='frame'></iframe>");
-  }
-
-  void TearDown() override { RenderViewTest::TearDown(); }
-
-  HistoryController* history_controller() {
-    return static_cast<RenderViewImpl*>(view_)->history_controller();
-  }
-};
-
-#if defined(OS_ANDROID)
-// See https://crbug.com/472717
-#define MAYBE_InertCommitRemovesChildren DISABLED_InertCommitRemovesChildren
-#else
-#define MAYBE_InertCommitRemovesChildren InertCommitRemovesChildren
-#endif
-
-TEST_F(HistoryControllerTest, MAYBE_InertCommitRemovesChildren) {
-  // This test is moot when subframe FrameNavigationEntries are enabled, since
-  // we don't use HistoryController in that case.
-  if (SiteIsolationPolicy::UseSubframeNavigationEntries())
-    return;
-
-  HistoryEntry* entry = history_controller()->GetCurrentEntry();
-  ASSERT_TRUE(entry);
-  ASSERT_EQ(1ul, entry->root_history_node()->children().size());
-
-  blink::WebHistoryItem item;
-  item.initialize();
-  RenderFrameImpl* main_frame =
-      static_cast<RenderFrameImpl*>(view_->GetMainRenderFrame());
-
-  // Don't clear children for in-page navigations.
-  history_controller()->UpdateForCommit(main_frame, item,
-                                        blink::WebHistoryInertCommit, true);
-  EXPECT_EQ(1ul, entry->root_history_node()->children().size());
-
-  // Clear children for cross-page navigations.
-  history_controller()->UpdateForCommit(main_frame, item,
-                                        blink::WebHistoryInertCommit, false);
-  EXPECT_EQ(0ul, entry->root_history_node()->children().size());
-}
-
-}  // namespace