PlzNavigate: inform the renderer that a navigation is a POST

content/browser/browser_side_navigation_browsertest.cc

Index: content/browser/browser_side_navigation_browsertest.cc
diff --git a/content/browser/browser_side_navigation_browsertest.cc b/content/browser/browser_side_navigation_browsertest.cc
index c23b7370d800da24e052387410cc23fab2f2043b..599f3cc5b71d1fa5b408dcb9c36c35c8a32e0010 100644
--- a/content/browser/browser_side_navigation_browsertest.cc
+++ b/content/browser/browser_side_navigation_browsertest.cc
@@ -6,6 +6,7 @@
 
 #include "base/command_line.h"
 #include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/common/site_isolation_policy.h"
 #include "content/public/browser/web_contents.h"
@@ -201,4 +202,30 @@ IN_PROC_BROWSER_TEST_F(BrowserSideNavigationBrowserTest, FailedNavigation) {
   }
 }
 
+// Ensure that browser side navigation handles POST navigations correctly.
+IN_PROC_BROWSER_TEST_F(BrowserSideNavigationBrowserTest, POSTNavigation) {
+  GURL url(embedded_test_server()->GetURL("/session_history/form.html"));
+  GURL post_url = embedded_test_server()->GetURL("/echotitle");
+
+  // Navigate to a page with a form.
+  TestNavigationObserver observer(shell()->web_contents());
+  NavigateToURL(shell(), url);
+  EXPECT_EQ(url, observer.last_navigation_url());
+  EXPECT_TRUE(observer.last_navigation_succeeded());
+
+  // Submit the form.
+  GURL submit_url("javascript:submitForm('isubmit')");
+  NavigateToURL(shell(), submit_url);
+
+  // Check that a proper POST navigation was done.
+  EXPECT_EQ("text=&select=a",
+            base::UTF16ToASCII(shell()->web_contents()->GetTitle()));
+  EXPECT_EQ(post_url, shell()->web_contents()->GetLastCommittedURL());
+  EXPECT_TRUE(shell()
+                  ->web_contents()
+                  ->GetController()
+                  .GetActiveEntry()
+                  ->GetHasPostData());
+}
+
 }  // namespace content