Merge CrossSiteResourceHandler and NavigationResourceThrottle

content/browser/devtools/render_frame_devtools_agent_host.cc

Index: content/browser/devtools/render_frame_devtools_agent_host.cc
diff --git a/content/browser/devtools/render_frame_devtools_agent_host.cc b/content/browser/devtools/render_frame_devtools_agent_host.cc
index d55be9332960e615fff19a921da7e285e6ffdad2..acfa56f43f529e203f49bd245e65da0338b67eb1 100644
--- a/content/browser/devtools/render_frame_devtools_agent_host.cc
+++ b/content/browser/devtools/render_frame_devtools_agent_host.cc
@@ -562,8 +562,8 @@ RenderFrameDevToolsAgentHost::~RenderFrameDevToolsAgentHost() {
 
 void RenderFrameDevToolsAgentHost::ReadyToCommitNavigation(
     NavigationHandle* navigation_handle) {
-  // ReadyToCommitNavigation should only be called in PlzNavigate.
-  DCHECK(IsBrowserSideNavigationEnabled());
+  if (!IsBrowserSideNavigationEnabled())
+    return;
 
   // If the navigation is not tracked, return;
   if (navigating_handles_.count(navigation_handle) == 0)