Improve process crash handling in RenderViewHost & mock RenderProcessHost.

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 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.
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
@@ skipping 636 matching lines @@
 bool RenderFrameHostImpl::IsRenderFrameLive() {
   bool is_live = GetProcess()->HasConnection() && render_frame_created_;
 
   // If the process is for an isolated guest (e.g. <webview>), rely on the
   // RenderViewHost liveness check. Once https://crbug.com/492830 is fixed,
   // this can be removed.
   if (GetProcess()->IsIsolatedGuest())
     is_live = render_view_host_->IsRenderViewLive();
 
   // Sanity check: the RenderView should always be live if the RenderFrame is.
-  DCHECK(!is_live || render_view_host_->IsRenderViewLive());
+  DCHECK_IMPLIES(is_live, render_view_host_->IsRenderViewLive());
 
   return is_live;
 }
 
 void RenderFrameHostImpl::SetRenderFrameCreated(bool created) {
   bool was_created = render_frame_created_;
   render_frame_created_ = created;
 
   // If the current status is different than the new status, the delegate
   // needs to be notified.
@@ skipping 432 matching lines @@
   // reset.
   SetRenderFrameCreated(false);
   InvalidateMojoConnection();
 
   // Execute any pending AX tree snapshot callbacks with an empty response,
   // since we're never going to get a response from this renderer.
   for (const auto& iter : ax_tree_snapshot_callbacks_)
     iter.second.Run(ui::AXTreeUpdate());
   ax_tree_snapshot_callbacks_.clear();
 
-  if (frame_tree_node_->IsMainFrame()) {
-    // RenderViewHost/RenderWidgetHost needs to reset some stuff.
-    render_view_host_->RendererExited(
-        render_view_host_->render_view_termination_status_, exit_code);
-
-    render_view_host_->delegate_->RenderViewTerminated(
-        render_view_host_, static_cast<base::TerminationStatus>(status),
-        exit_code);
-  }
-
   // Note: don't add any more code at this point in the function because
   // |this| may be deleted. Any additional cleanup should happen before
   // the last block of code here.
 }
 
 void RenderFrameHostImpl::OnSwappedOut() {
   // Ignore spurious swap out ack.
   if (rfh_state_ != STATE_PENDING_SWAP_OUT)
     return;
 
@@ skipping 942 matching lines @@
   // We may be returning to an existing NavigationEntry that had been granted
   // file access.  If this is a different process, we will need to grant the
   // access again.  The files listed in the page state are validated when they
   // are received from the renderer to prevent abuse.
   if (request_params.page_state.IsValid()) {
     render_view_host_->GrantFileAccessFromPageState(request_params.page_state);
   }
 }
 
 }  // namespace content