Revert of Remove DCHECK_IMPLIES/CHECK_IMPLIES.

content/test/test_web_contents.cc

 // Copyright (c) 2012 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 "content/test/test_web_contents.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "content/browser/browser_url_handler_impl.h"
@@ skipping 208 matching lines @@
           switches::kEnableBrowserSideNavigation);
   if (!browser_side_navigation ||
       GetMainFrame()->frame_tree_node()->navigation_request()) {
     GetMainFrame()->PrepareForCommit();
   }
 
   TestRenderFrameHost* old_rfh = GetMainFrame();
   TestRenderFrameHost* rfh = GetPendingMainFrame();
   if (!rfh)
     rfh = old_rfh;
-  CHECK(!browser_side_navigation || rfh->is_loading());
-  CHECK(!browser_side_navigation ||
-        !rfh->frame_tree_node()->navigation_request());
+  CHECK_IMPLIES(browser_side_navigation, rfh->is_loading());
+  CHECK_IMPLIES(browser_side_navigation,
+                !rfh->frame_tree_node()->navigation_request());
 
   int page_id = entry->GetPageID();
   if (page_id == -1) {
     // It's a new navigation, assign a never-seen page id to it.
     page_id = GetMaxPageIDForSiteInstance(rfh->GetSiteInstance()) + 1;
   }
 
   rfh->SendNavigate(page_id, entry->GetUniqueID(),
                     GetController().GetPendingEntryIndex() == -1,
                     entry->GetURL());
@@ skipping 85 matching lines @@
 void TestWebContents::ShowCreatedFullscreenWidget(int route_id) {
 }
 
 void TestWebContents::SaveFrameWithHeaders(const GURL& url,
                                            const Referrer& referrer,
                                            const std::string& headers) {
   save_frame_headers_ = headers;
 }
 
 }  // namespace content