Calling PageSignalReceiver::AddObserver during WebContents initialization on Android fails with the following error:

[FATAL:binding_state.cc(93)] Check failed: !is_bound(). Attempting to bind interface that is already bound: resource_coordinator.mojom.PageSignalReceiver

The lazy interface binding is guarded by (!observers_.might_have_observers()) check, which seems fragile because the list of observers can become empty after binding.

I am working on a fix.

Stack trace from https://chromium-review.googlesource.com/c/chromium/src/+/1097481:
 000cc1dd logging::LogMessage::~LogMessage() chrome/src/base/logging.cc:592:29
 000128c9 mojo::internal::BindingStateBase::BindInternal(mojo::ScopedHandleBase<mojo::MessagePipeHandle>, scoped_refptr<base::SingleThreadTaskRunner>, char const*, std::__ndk1::unique_ptr<mojo::MessageReceiver, std::__ndk1::default_delete<mojo::MessageReceiver> >, bool, bool, mojo::MessageReceiverWithResponderStatus*, unsigned int) chrome/src/mojo/public/cpp/bindings/lib/binding_state.cc:93:3
 00a10115 mojo::internal::BindingState<resource_coordinator::mojom::PageSignalReceiver, mojo::RawPtrImplRefTraits<resource_coordinator::mojom::PageSignalReceiver> >::Bind(mojo::ScopedHandleBase<mojo::MessagePipeHandle>, scoped_refptr<base::SingleThreadTaskRunner>) chrome/src/mojo/public/cpp/bindings/lib/binding_state.h:112:23
 00a0ff57 mojo::Binding<resource_coordinator::mojom::PageSignalReceiver, mojo::RawPtrImplRefTraits<resource_coordinator::mojom::PageSignalReceiver> >::Bind(mojo::InterfaceRequest<resource_coordinator::mojom::PageSignalReceiver>, scoped_refptr<base::SingleThreadTaskRunner>) chrome/src/mojo/public/cpp/bindings/binding.h:101:21
 00a0fe71 resource_coordinator::PageSignalReceiver::AddObserver(resource_coordinator::PageSignalObserver*) chrome/src/chrome/browser/resource_coordinator/page_signal_receiver.cc:98:16
 00e0beb1 BloatedRendererTabHelper::BloatedRendererTabHelper(content::WebContents*) chrome/src/chrome/browser/ui/bloated_renderer/bloated_renderer_tab_helper.cc:40:27
 00e19cb3 content::WebContentsUserData<BloatedRendererTabHelper>::CreateForWebContents(content::WebContents*) chrome/src/content/public/browser/web_contents_user_data.h:39:65
 00e19941 TabHelpers::AttachTabHelpers(content::WebContents*) chrome/src/chrome/browser/ui/tab_helpers.cc:191:3
 00a86ba9 TabAndroid::AttachTabHelpers(content::WebContents*) chrome/src/chrome/browser/android/tab_android.cc:197:3
 00a855b1 TabAndroid::InitWebContents(_JNIEnv*, base::android::JavaParamRef<_jobject*> const&, unsigned char, unsigned char, base::android::JavaParamRef<_jobject*> const&, int, base::android::JavaParamRef<_jobject*> const&, base::android::JavaParamRef<_jobject*> const&) chrome/src/chrome/browser/android/tab_android.cc:424:3
 00a85549 Java_org_chromium_chrome_browser_tab_Tab_nativeInitWebContents chrome/src/out/Android/gen/chrome/browser/jni_headers/chrome/jni/Tab_jni.h:67:18