Remove old diagnostic crash reports.

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index 4fd32bcea7af8e9b0bf3fded1823f47358f69111..b364a51ccf27949a3d63a046d4c810e53f401fa8 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -11,7 +11,6 @@
 
 #include "base/callback.h"
 #include "base/command_line.h"
-#include "base/debug/dump_without_crashing.h"
 #include "base/feature_list.h"
 #include "base/i18n/rtl.h"
 #include "base/json/json_reader.h"
@@ -278,13 +277,9 @@ bool RenderViewHostImpl::CreateRenderView(
   CHECK(main_frame_routing_id_ != MSG_ROUTING_NONE ||
         proxy_route_id != MSG_ROUTING_NONE);
 
-  // We should not set both main_frame_routing_id_ and proxy_route_id.  Log
-  // cases that this happens (without crashing) to track down
-  // https://crbug.com/575245.
-  // TODO(creis): Remove this once we've found the cause.
-  if (main_frame_routing_id_ != MSG_ROUTING_NONE &&
-      proxy_route_id != MSG_ROUTING_NONE)
-    base::debug::DumpWithoutCrashing();
+  // We should not set both main_frame_routing_id_ and proxy_route_id.
+  DCHECK(main_frame_routing_id_ == MSG_ROUTING_NONE ||
+         proxy_route_id == MSG_ROUTING_NONE);
 
   GetWidget()->set_renderer_initialized(true);