 +++ b/content/browser/frame_host/render_frame_host_impl.cc
 @@ -2072,8 +2073,10 @@ void RenderFrameHostImpl::AllowBindings(int bindings_flags) {
    }
-
+ 
    enabled_bindings_ |= bindings_flags;
 -  if (GetParent())
 -    DCHECK_EQ(GetParent()->GetEnabledBindings(), GetEnabledBindings());

+++ b/base/memory/weak_ptr.cc
@@ -23,8 +23,8 @@ void WeakReference::Flag::Invalidate() {
 }

 bool WeakReference::Flag::IsValid() const {
-  DCHECK(sequence_checker_.CalledOnValidSequence())
-      << "WeakPtrs must be checked on the same sequenced thread.";

+++ b/ppapi/host/ppapi_host.cc
@@ -240,7 +240,7 @@ void PpapiHost::OnHostMsgResourceCreated(
       CreateResourceHost(params.pp_resource(), instance, nested_msg);
 
   if (!resource_host.get()) {
-    NOTREACHED();
+    // NOTREACHED();
     return;
   }
 
diff --git a/third_party/WebKit/Source/core/loader/BUILD.gn b/third_party/WebKit/Source/core/loader/BUILD.gn
index 4da843f7f712..f07f24a07ef2 100644
--- a/third_party/WebKit/Source/core/loader/BUILD.gn
