PlzNavigate: Add a browser test for basic navigations

content/test/content_browser_test_utils_internal.cc

Index: content/test/content_browser_test_utils_internal.cc
diff --git a/content/test/content_browser_test_utils_internal.cc b/content/test/content_browser_test_utils_internal.cc
index 21a33d0fee3e8f73c587ca9e5cf34a5675526d1c..00cb0bf52f2b10e1160ad5895805acde44d8ec51 100644
--- a/content/test/content_browser_test_utils_internal.cc
+++ b/content/test/content_browser_test_utils_internal.cc
@@ -11,6 +11,39 @@
 
 namespace content {
 
+TestNavigationWebContentsObserver::TestNavigationWebContentsObserver(
+    WebContents* web_contents)
+    : WebContentsObserver(web_contents), navigation_succeeded_(false) {
+}
+
+TestNavigationWebContentsObserver::~TestNavigationWebContentsObserver() {
+}
+
+void TestNavigationWebContentsObserver::DidStartProvisionalLoadForFrame(
+    RenderFrameHost* render_frame_host,
+    const GURL& validated_url,
+    bool is_error_page,
+    bool is_iframe_srcdoc) {
+  navigation_succeeded_ = false;
+}
+
+void TestNavigationWebContentsObserver::DidFailProvisionalLoad(
+    RenderFrameHost* render_frame_host,
+    const GURL& validated_url,
+    int error_code,
+    const base::string16& error_description) {
+  navigation_url_ = validated_url;
+  navigation_succeeded_ = false;
+}
+
+void TestNavigationWebContentsObserver::DidCommitProvisionalLoadForFrame(
+    RenderFrameHost* render_frame_host,
+    const GURL& url,
+    ui::PageTransition transition_type) {
+  navigation_url_ = url;
+  navigation_succeeded_ = true;
+}
+
 void NavigateFrameToURL(FrameTreeNode* node, const GURL& url) {
   TestFrameNavigationObserver observer(node);
   NavigationController::LoadURLParams params(url);