Add certificate error handling to devtools.

content/browser/devtools/render_frame_devtools_agent_host.h

Index: content/browser/devtools/render_frame_devtools_agent_host.h
diff --git a/content/browser/devtools/render_frame_devtools_agent_host.h b/content/browser/devtools/render_frame_devtools_agent_host.h
index 74b482cf0d56a9248305774cc137c90b59d34508..709d477f57a6fd32d5024e6415db5c78db8202ff 100644
--- a/content/browser/devtools/render_frame_devtools_agent_host.h
+++ b/content/browser/devtools/render_frame_devtools_agent_host.h
@@ -60,11 +60,17 @@ class CONTENT_EXPORT RenderFrameDevToolsAgentHost
       RenderFrameHost* frame_host,
       cc::CompositorFrameMetadata frame_metadata);
 
+  static bool NotifyCertificateError(
+      RenderFrameDevToolsAgentHost* agent_host,
+      int cert_error,
+      const GURL& request_url,
+      base::Callback<void(content::CertificateRequestResultType)> callback);
+
   bool HasRenderFrameHost(RenderFrameHost* host);
 
   FrameTreeNode* frame_tree_node() { return frame_tree_node_; }
 
-  // DevTooolsAgentHost overrides.
+  // DevToolsAgentHost overrides.
   void DisconnectWebContents() override;
   void ConnectWebContents(WebContents* web_contents) override;
   BrowserContext* GetBrowserContext() override;