Suppress NEW_NAVIGATION_ENTRY prerenderer failures for ORIGIN_OFFLINE

chrome/browser/prerender/prerender_contents.cc

Index: chrome/browser/prerender/prerender_contents.cc
diff --git a/chrome/browser/prerender/prerender_contents.cc b/chrome/browser/prerender/prerender_contents.cc
index aea147d28bf082ac2336cfc8edae770afc03b79b..539c53e63973d029304d59beba083b655d1b5b09 100644
--- a/chrome/browser/prerender/prerender_contents.cc
+++ b/chrome/browser/prerender/prerender_contents.cc
@@ -577,6 +577,10 @@ void PrerenderContents::DidFinishLoad(
 void PrerenderContents::DidNavigateMainFrame(
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
+  // Offline requests are not subject to navigation and use of history.
+  if (origin() != ORIGIN_OFFLINE)

[pasko, 2017/01/25 12:20:54]

s/!=/==/

in case you wondered why a few tests failed ;)

[dougarnett, 2017/01/25 20:39:33]

:-)

+    return;
+
   // If the prerender made a second navigation entry, abort the prerender. This
   // avoids having to correctly implement a complex history merging case (this
   // interacts with location.replace) and correctly synchronize with the