Navigation: move RestoreType and ReloadType into a separate file

content/browser/frame_host/navigation_controller_impl.cc

 // Copyright 2013 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.
 
 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  *     (http://www.torchmobile.com/)
  *
@@ skipping 96 matching lines @@
 //
 // An empty state is treated as a new navigation by WebKit, which would mean
 // losing the navigation entries and generating a new navigation entry after
 // this one. We don't want that. To avoid this we create a valid state which
 // WebKit will not treat as a new navigation.
 void SetPageStateIfEmpty(NavigationEntryImpl* entry) {
   if (!entry->GetPageState().IsValid())
     entry->SetPageState(PageState::CreateFromURL(entry->GetURL()));
 }
 
-NavigationEntryImpl::RestoreType ControllerRestoreTypeToEntryType(
-    NavigationController::RestoreType type) {
-  switch (type) {
-    case NavigationController::RESTORE_CURRENT_SESSION:
-      return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
-    case NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY:
-      return NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY;
-    case NavigationController::RESTORE_LAST_SESSION_CRASHED:
-      return NavigationEntryImpl::RESTORE_LAST_SESSION_CRASHED;
-  }
-  NOTREACHED();
-  return NavigationEntryImpl::RESTORE_CURRENT_SESSION;
-}
-
 // Configure all the NavigationEntries in entries for restore. This resets
 // the transition type to reload and makes sure the content state isn't empty.
 void ConfigureEntriesForRestore(
     std::vector<std::unique_ptr<NavigationEntryImpl>>* entries,
-    NavigationController::RestoreType type) {
+    RestoreType type) {
   for (size_t i = 0; i < entries->size(); ++i) {
     // Use a transition type of reload so that we don't incorrectly increase
     // the typed count.
     (*entries)[i]->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
-    (*entries)[i]->set_restore_type(ControllerRestoreTypeToEntryType(type));
+    (*entries)[i]->set_restore_type(type);
     // NOTE(darin): This code is only needed for backwards compat.
     SetPageStateIfEmpty((*entries)[i].get());
   }
 }
 
 // Determines whether or not we should be carrying over a user agent override
 // between two NavigationEntries.
 bool ShouldKeepOverride(const NavigationEntry* last_entry) {
   return last_entry && last_entry->GetIsOverridingUserAgent();
 }
@@ skipping 80 matching lines @@
       failed_pending_entry_id_(0),
       last_committed_entry_index_(-1),
       pending_entry_index_(-1),
       transient_entry_index_(-1),
       delegate_(delegate),
       max_restored_page_id_(-1),
       ssl_manager_(this),
       needs_reload_(false),
       is_initial_navigation_(true),
       in_navigate_to_pending_entry_(false),
-      pending_reload_(NO_RELOAD),
+      pending_reload_(ReloadType::NONE),
       get_timestamp_callback_(base::Bind(&base::Time::Now)),
       screenshot_manager_(new NavigationEntryScreenshotManager(this)) {
   DCHECK(browser_context_);
 }
 
 NavigationControllerImpl::~NavigationControllerImpl() {
   DiscardNonCommittedEntriesInternal();
 }
 
 WebContents* NavigationControllerImpl::GetWebContents() const {
@@ skipping 21 matching lines @@
 
   // At this point, the |entries| is full of empty scoped_ptrs, so it can be
   // cleared out safely.
   entries->clear();
 
   // And finish the restore.
   FinishRestore(selected_navigation, type);
 }
 
 void NavigationControllerImpl::Reload(bool check_for_repost) {
-  ReloadType type = RELOAD;
+  ReloadType type = ReloadType::NORMAL;
   if (base::FeatureList::IsEnabled(
         features::kNonValidatingReloadOnNormalReload)) {
-    type = RELOAD_MAIN_RESOURCE;
+    type = ReloadType::MAIN_RESOURCE;
   }
   ReloadInternal(check_for_repost, type);
 }
 void NavigationControllerImpl::ReloadToRefreshContent(bool check_for_repost) {
-  ReloadType type = RELOAD;
+  ReloadType type = ReloadType::NORMAL;
   if (base::FeatureList::IsEnabled(
         features::kNonValidatingReloadOnRefreshContent)) {
-    type = RELOAD_MAIN_RESOURCE;
+    type = ReloadType::MAIN_RESOURCE;
   }
   ReloadInternal(check_for_repost, type);
 }
 void NavigationControllerImpl::ReloadBypassingCache(bool check_for_repost) {
-  ReloadInternal(check_for_repost, RELOAD_BYPASSING_CACHE);
+  ReloadInternal(check_for_repost, ReloadType::BYPASSING_CACHE);
 }
 void NavigationControllerImpl::ReloadOriginalRequestURL(bool check_for_repost) {
-  ReloadInternal(check_for_repost, RELOAD_ORIGINAL_REQUEST_URL);
+  ReloadInternal(check_for_repost, ReloadType::ORIGINAL_REQUEST_URL);
 }
 void NavigationControllerImpl::ReloadDisableLoFi(bool check_for_repost) {
-  ReloadInternal(check_for_repost, RELOAD_DISABLE_LOFI_MODE);
+  ReloadInternal(check_for_repost, ReloadType::DISABLE_LOFI_MODE);
 }
 
 void NavigationControllerImpl::ReloadInternal(bool check_for_repost,
                                               ReloadType reload_type) {
   if (transient_entry_index_ != -1) {
     // If an interstitial is showing, treat a reload as a navigation to the
     // transient entry's URL.
     NavigationEntryImpl* transient_entry = GetTransientEntry();
     if (!transient_entry)
       return;
@@ skipping 55 matching lines @@
         site_instance->HasWrongProcessForURL(entry->GetURL())) {
       // Create a navigation entry that resembles the current one, but do not
       // copy page id, site instance, content state, or timestamp.
       NavigationEntryImpl* nav_entry = NavigationEntryImpl::FromNavigationEntry(
           CreateNavigationEntry(
               entry->GetURL(), entry->GetReferrer(), entry->GetTransitionType(),
               false, entry->extra_headers(), browser_context_).release());
 
       // Mark the reload type as NO_RELOAD, so navigation will not be considered
       // a reload in the renderer.
-      reload_type = NavigationController::NO_RELOAD;
+      reload_type = ReloadType::NONE;
 
       nav_entry->set_should_replace_entry(true);
       pending_entry_ = nav_entry;
       DCHECK_EQ(-1, pending_entry_index_);
     } else {
       pending_entry_ = entry;
       pending_entry_index_ = current_index;
 
       // The title of the page being reloaded might have been removed in the
       // meanwhile, so we need to revert to the default title upon reload and
       // invalidate the previously cached title (SetTitle will do both).
       // See Chromium issue 96041.
       pending_entry_->SetTitle(base::string16());
 
       pending_entry_->SetTransitionType(ui::PAGE_TRANSITION_RELOAD);
     }
 
     NavigateToPendingEntry(reload_type);
   }
 }
 
 void NavigationControllerImpl::CancelPendingReload() {
-  DCHECK(pending_reload_ != NO_RELOAD);
-  pending_reload_ = NO_RELOAD;
+  DCHECK(pending_reload_ != ReloadType::NONE);
+  pending_reload_ = ReloadType::NONE;
 }
 
 void NavigationControllerImpl::ContinuePendingReload() {
-  if (pending_reload_ == NO_RELOAD) {
+  if (pending_reload_ == ReloadType::NONE) {
     NOTREACHED();
   } else {
     ReloadInternal(false, pending_reload_);
-    pending_reload_ = NO_RELOAD;
+    pending_reload_ = ReloadType::NONE;
   }
 }
 
 bool NavigationControllerImpl::IsInitialNavigation() const {
   return is_initial_navigation_;
 }
 
 bool NavigationControllerImpl::IsInitialBlankNavigation() const {
   // TODO(creis): Once we create a NavigationEntry for the initial blank page,
-  // we'll need to check for entry count 1 and restore_type RESTORE_NONE (to
-  // exclude the cloned tab case).
+  // we'll need to check for entry count 1 and restore_type NONE (to exclude
+  // the cloned tab case).
   return IsInitialNavigation() && GetEntryCount() == 0;
 }
 
 NavigationEntryImpl* NavigationControllerImpl::GetEntryWithPageID(
     SiteInstance* instance,
     int32_t page_id) const {
   int index = GetEntryIndexWithPageID(instance, page_id);
   return (index != -1) ? entries_[index].get() : nullptr;
 }
 
 NavigationEntryImpl*
 NavigationControllerImpl::GetEntryWithUniqueID(int nav_entry_id) const {
   int index = GetEntryIndexWithUniqueID(nav_entry_id);
   return (index != -1) ? entries_[index].get() : nullptr;
 }
 
 void NavigationControllerImpl::LoadEntry(
     std::unique_ptr<NavigationEntryImpl> entry) {
   // When navigating to a new page, we don't know for sure if we will actually
   // end up leaving the current page.  The new page load could for example
   // result in a download or a 'no content' response (e.g., a mailto: URL).
   SetPendingEntry(std::move(entry));
-  NavigateToPendingEntry(NO_RELOAD);
+  NavigateToPendingEntry(ReloadType::NONE);
 }
 
 void NavigationControllerImpl::SetPendingEntry(
     std::unique_ptr<NavigationEntryImpl> entry) {
   DiscardNonCommittedEntriesInternal();
   pending_entry_ = entry.release();
   NotificationService::current()->Notify(
       NOTIFICATION_NAV_ENTRY_PENDING,
       Source<NavigationController>(this),
       Details<NavigationEntry>(pending_entry_));
@@ skipping 142 matching lines @@
     }
   }
 
   DiscardNonCommittedEntries();
 
   pending_entry_index_ = index;
   entries_[pending_entry_index_]->SetTransitionType(
       ui::PageTransitionFromInt(
           entries_[pending_entry_index_]->GetTransitionType() |
           ui::PAGE_TRANSITION_FORWARD_BACK));
-  NavigateToPendingEntry(NO_RELOAD);
+  NavigateToPendingEntry(ReloadType::NONE);
 }
 
 void NavigationControllerImpl::GoToOffset(int offset) {
   // Note: This is actually reached in unit tests.
   if (!CanGoToOffset(offset))
     return;
 
   GoToIndex(GetIndexForOffset(offset));
 }
 
@@ skipping 172 matching lines @@
   if (GetLastCommittedEntry()) {
     details->previous_url = GetLastCommittedEntry()->GetURL();
     details->previous_entry_index = GetLastCommittedEntryIndex();
   } else {
     details->previous_url = GURL();
     details->previous_entry_index = -1;
   }
 
   // If there is a pending entry at this point, it should have a SiteInstance,
   // except for restored entries.
-  DCHECK(pending_entry_index_ == -1 ||
-         pending_entry_->site_instance() ||
-         pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE);
-  if (pending_entry_ &&
-      pending_entry_->restore_type() != NavigationEntryImpl::RESTORE_NONE)
-    pending_entry_->set_restore_type(NavigationEntryImpl::RESTORE_NONE);
+  DCHECK(pending_entry_index_ == -1 || pending_entry_->site_instance() ||
+         pending_entry_->restore_type() != RestoreType::NONE);
+  if (pending_entry_ && pending_entry_->restore_type() != RestoreType::NONE) {
+    pending_entry_->set_restore_type(RestoreType::NONE);
+  }
 
   // The renderer tells us whether the navigation replaces the current entry.
   details->did_replace_entry = params.should_replace_current_entry;
 
   // Do navigation-type specific actions. These will make and commit an entry.
   details->type = ClassifyNavigation(rfh, params);
 
   // is_in_page must be computed before the entry gets committed.
   details->is_in_page = IsURLInPageNavigation(params.url, params.origin,
                                               params.was_within_same_page, rfh);
@@ skipping 654 matching lines @@
 
   for (SessionStorageNamespaceMap::const_iterator it =
            source.session_storage_namespace_map_.begin();
        it != source.session_storage_namespace_map_.end();
        ++it) {
     SessionStorageNamespaceImpl* source_namespace =
         static_cast<SessionStorageNamespaceImpl*>(it->second.get());
     session_storage_namespace_map_[it->first] = source_namespace->Clone();
   }
 
-  FinishRestore(source.last_committed_entry_index_, RESTORE_CURRENT_SESSION);
+  FinishRestore(source.last_committed_entry_index_,
+                RestoreType::CURRENT_SESSION);
 
   // Copy the max page id map from the old tab to the new tab.  This ensures
   // that new and existing navigations in the tab's current SiteInstances
   // are identified properly.
   delegate_->CopyMaxPageIDsFrom(source.delegate()->GetWebContents());
 }
 
 void NavigationControllerImpl::CopyStateFromAndPrune(
     NavigationController* temp,
     bool replace_entry) {
@@ skipping 284 matching lines @@
   needs_reload_ = false;
 
   // If we were navigating to a slow-to-commit page, and the user performs
   // a session history navigation to the last committed page, RenderViewHost
   // will force the throbber to start, but WebKit will essentially ignore the
   // navigation, and won't send a message to stop the throbber. To prevent this
   // from happening, we drop the navigation here and stop the slow-to-commit
   // page from loading (which would normally happen during the navigation).
   if (pending_entry_index_ != -1 &&
       pending_entry_index_ == last_committed_entry_index_ &&
-      (entries_[pending_entry_index_]->restore_type() ==
-          NavigationEntryImpl::RESTORE_NONE) &&
+      (entries_[pending_entry_index_]->restore_type() == RestoreType::NONE) &&
       (entries_[pending_entry_index_]->GetTransitionType() &
-          ui::PAGE_TRANSITION_FORWARD_BACK)) {
+       ui::PAGE_TRANSITION_FORWARD_BACK)) {
     delegate_->Stop();
 
     // If an interstitial page is showing, we want to close it to get back
     // to what was showing before.
     if (delegate_->GetInterstitialPage())
       delegate_->GetInterstitialPage()->DontProceed();
 
     DiscardNonCommittedEntries();
     return;
   }
@@ skipping 187 matching lines @@
 }
 
 void NavigationControllerImpl::LoadIfNecessary() {
   if (!needs_reload_)
     return;
 
   // Calling Reload() results in ignoring state, and not loading.
   // Explicitly use NavigateToPendingEntry so that the renderer uses the
   // cached state.
   if (pending_entry_) {
-    NavigateToPendingEntry(NO_RELOAD);
+    NavigateToPendingEntry(ReloadType::NONE);
   } else if (last_committed_entry_index_ != -1) {
     pending_entry_index_ = last_committed_entry_index_;
-    NavigateToPendingEntry(NO_RELOAD);
+    NavigateToPendingEntry(ReloadType::NONE);
   } else {
     // If there is something to reload, the successful reload will clear the
     // |needs_reload_| flag. Otherwise, just do it here.
     needs_reload_ = false;
   }
 }
 
 void NavigationControllerImpl::NotifyEntryChanged(
     const NavigationEntry* entry) {
   EntryChangedDetails det;
@@ skipping 103 matching lines @@
     }
   }
 }
 
 void NavigationControllerImpl::SetGetTimestampCallbackForTest(
     const base::Callback<base::Time()>& get_timestamp_callback) {
   get_timestamp_callback_ = get_timestamp_callback;
 }
 
 }  // namespace content