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 04cede818c6fe7e20c52fd67dc8f8a3c969f8a2e..97a0b3d4f07b0cedac148c1bd56dde5f1eef8e2d 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)