PlzNavigate: add support in several navigation controller unit tests

content/test/test_web_contents.h

Index: content/test/test_web_contents.h
diff --git a/content/test/test_web_contents.h b/content/test/test_web_contents.h
index 83ce185657f4398127f55c039ce486e1d341a9d3..074fbfe424ea19a7e249a4f2c41137bae023cc28 100644
--- a/content/test/test_web_contents.h
+++ b/content/test/test_web_contents.h
@@ -96,6 +96,43 @@ class TestWebContents : public WebContentsImpl, public WebContentsTester {
                                 int error_code,
                                 const base::string16& error_description);
 
+  // Simulates the renderer reponse for a navigation. Currently, this is
+  // receiving the BeforeUnload ack for a cross-site navigation.
+  // PlzNavigate: this simulates receiving a BeginNavigation IPC in response to
+  // a RequestNavigation IPC.
+  void ProceedNavigationWithRendererResponse(const GURL& url);
+
+  // Commits the pending navigation and simulates clearing the history.
+  // Note: this function does not simulate receiving the SwapOut ACK from the
+  // old renderer during cross-site navigations.
+  void CommitPendingNavigationWithHistoryCleared(
+      bool had_live_renderer,
+      bool simulate_history_list_was_cleared);
+
+  // Commits a navigation with the particular url |url| and the page ID
+  // |page_id|.
+  // Note: this function does not simulate receiving the SwapOut ACK from the
+  // old renderer during cross-site navigations.
+  void CommitNavigationWithPageID(int page_id,
+                                  const GURL& url,
+                                  bool had_live_renderer);
+
+  // Commits the pending navigation and simulates giving the bindings
+  // |binding_flags| to the renderer that commits it.
+  // Note: this function does not simulate receiving the SwapOut ACK from the
+  // old renderer during cross-site navigations.
+  void CommitPendingNavigationWithBindings(int binding_flags,
+                                           bool had_live_renderer);
+
+  // Commits the pending navigation when no live renderer was present when the
+  // navigation started.
+  void CommitPendingNavigationNoLiveRenderer();
+
+  // Simulates the commit of a renderer initiated navigation.
+  // PlzNavigate: also simulates receiving a BeginNavigation IPC from the
+  // renderer before the DidCommitProvisionalLoad IPC.
+  void SimulateRendererInitiatedNavigation(int page_id, const GURL& url);
+
  protected:
   // The deprecated WebContentsTester still needs to subclass this.
   explicit TestWebContents(BrowserContext* browser_context);
@@ -119,6 +156,22 @@ class TestWebContents : public WebContentsImpl, public WebContentsTester {
   void ShowCreatedWidget(int route_id, const gfx::Rect& initial_pos) override;
   void ShowCreatedFullscreenWidget(int route_id) override;
 
+  // Commits a navigation with the specified params. If |page_id| is -1, then an
+  // appropriate page id is computed based on the pending navigation entry.
+  // Otherwise the navigation will be committed with the specified |page_id|.
+  // Note: this function does not simulate receiving the SwapOut ACK from the
+  // old renderer during cross-site navigations.
+  void CommitNavigationWithParams(int32 page_id,
+                                  const GURL& url,
+                                  bool had_live_renderer,
+                                  bool simulate_history_list_was_cleared,
+                                  int binding_flags);
+
+  // PlzNavigate
+  // Simulates receiving a BeginNavigation IPC in response to a
+  // RequestNavigation IPC.
+  void SimulateIOThreadResponse();
+
   RenderViewHostDelegateView* delegate_view_override_;
 
   // Expectations for arguments of |SetHistoryLengthAndPrune()|.