Converts some DCHECKs into CHECKs in hopes of helping with a crash

mojo/public/cpp/bindings/lib/interface_impl_internal.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_IMPL_INTERNAL_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_IMPL_INTERNAL_H_
 
 #include "mojo/public/cpp/bindings/error_handler.h"
 #include "mojo/public/cpp/bindings/interface_ptr.h"
 #include "mojo/public/cpp/bindings/lib/filter_chain.h"
@@ skipping 47 matching lines @@
       bool instance_bound_to_pipe,
       const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter()) {
     MessagePipe pipe;
     ptr->Bind(pipe.handle0.Pass(), waiter);
     Bind(pipe.handle1.Pass(), instance_bound_to_pipe, waiter);
   }
 
   void Bind(ScopedMessagePipeHandle handle,
             bool instance_bound_to_pipe,
             const MojoAsyncWaiter* waiter) {
-    MOJO_DCHECK(!router_);
+    MOJO_CHECK(!router_);
 
     FilterChain filters;
     filters.Append<MessageHeaderValidator>();
     filters.Append<typename Interface::RequestValidator_>();
     filters.Append<typename Interface::Client::ResponseValidator_>();
 
     router_ = new Router(handle.Pass(), filters.Pass(), waiter);
     router_->set_incoming_receiver(&stub_);
     router_->set_error_handler(this);
 
@@ skipping 40 matching lines @@
   bool deleting_instance_due_to_error_;
 #endif
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(InterfaceImplState);
 };
 
 }  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_IMPL_INTERNAL_H_