Detect debugging target crash.

content/browser/devtools/render_view_devtools_agent_host.cc

Index: content/browser/devtools/render_view_devtools_agent_host.cc
diff --git a/content/browser/devtools/render_view_devtools_agent_host.cc b/content/browser/devtools/render_view_devtools_agent_host.cc
index 1005101b27611379063734736198f196ff726df1..a120714766d125d2f7f856c751fb75710908f071 100644
--- a/content/browser/devtools/render_view_devtools_agent_host.cc
+++ b/content/browser/devtools/render_view_devtools_agent_host.cc
@@ -20,6 +20,7 @@
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_widget_host_view.h"
+#include "content/public/browser/web_contents_observer.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDevToolsAgent.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/native_widget_types.h"
@@ -69,6 +70,33 @@ class DevToolsAgentHostRvhObserver : public RenderViewHostObserver {
   DISALLOW_COPY_AND_ASSIGN(DevToolsAgentHostRvhObserver);
 };
 
+class DevToolsAgentHostWebContentsObserver : public WebContentsObserver {
+ public:
+  DevToolsAgentHostWebContentsObserver(
+      WebContents* web_contents,
+      RenderViewDevToolsAgentHost* agent_host)
+      : WebContentsObserver(web_contents),
+        agent_host_(agent_host) {
+  }
+  virtual ~DevToolsAgentHostWebContentsObserver() {}
+
+  // WebContentsObserver overrides.
+  virtual void RenderViewGone(base::TerminationStatus status) OVERRIDE {
+    switch(status) {
+      case base::TERMINATION_STATUS_ABNORMAL_TERMINATION:
+      case base::TERMINATION_STATUS_PROCESS_WAS_KILLED:
+      case base::TERMINATION_STATUS_PROCESS_CRASHED:
+        agent_host_->RenderViewCrashed();
+        break;
+      default:
+        break;
+    }
+  }
+ private:
+  RenderViewDevToolsAgentHost* agent_host_;
+  DISALLOW_COPY_AND_ASSIGN(DevToolsAgentHostWebContentsObserver);
+};
+
 // static
 scoped_refptr<DevToolsAgentHost>
 DevToolsAgentHost::GetOrCreateFor(RenderViewHost* rvh) {
@@ -275,6 +303,8 @@ void RenderViewDevToolsAgentHost::ConnectRenderViewHost(RenderViewHost* rvh,
                                                         bool reattach) {
   render_view_host_ = rvh;
   rvh_observer_.reset(new DevToolsAgentHostRvhObserver(rvh, this));
+  web_contents_observer_.reset(new DevToolsAgentHostWebContentsObserver(
+      WebContents::FromRenderViewHost(rvh), this));
   if (reattach)
     Reattach(state_);
 }
@@ -282,6 +312,7 @@ void RenderViewDevToolsAgentHost::ConnectRenderViewHost(RenderViewHost* rvh,
 void RenderViewDevToolsAgentHost::DisconnectRenderViewHost() {
   NotifyClientDetaching();
   rvh_observer_.reset();
+  web_contents_observer_.reset();
   render_view_host_ = NULL;
 }
 
@@ -294,6 +325,12 @@ void RenderViewDevToolsAgentHost::RenderViewHostDestroyed(
   Release();
 }
 
+void RenderViewDevToolsAgentHost::RenderViewCrashed() {
+  DevToolsManagerImpl::GetInstance()->DispatchOnInspectorFrontend(
+      this,
+      WebDevToolsAgent::inspectorTargetCrashedEvent().utf8());
+}
+
 bool RenderViewDevToolsAgentHost::OnRvhMessageReceived(
     const IPC::Message& message) {
   bool handled = true;