Add certificate error handling to devtools.

content/browser/devtools/protocol/security_handler.h

Index: content/browser/devtools/protocol/security_handler.h
diff --git a/content/browser/devtools/protocol/security_handler.h b/content/browser/devtools/protocol/security_handler.h
index 136811a58f61e0ad2a05877aac12cd1ffeb66681..e9085699966f79f1a0b243f7112f3eeb51afee91 100644
--- a/content/browser/devtools/protocol/security_handler.h
+++ b/content/browser/devtools/protocol/security_handler.h
@@ -5,9 +5,12 @@
 #ifndef CONTENT_BROWSER_DEVTOOLS_PROTOCOL_SECURITY_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_SECURITY_HANDLER_H_
 
+#include <unordered_map>
+
 #include "base/macros.h"
 #include "content/browser/devtools/protocol/devtools_domain_handler.h"
 #include "content/browser/devtools/protocol/security.h"
+#include "content/public/browser/certificate_request_result_type.h"
 #include "content/public/browser/web_contents_observer.h"
 
 namespace content {
@@ -21,27 +24,48 @@ class SecurityHandler : public DevToolsDomainHandler,
                         public Security::Backend,
                         public WebContentsObserver {
  public:
+  using CertErrorCallback =
+      base::Callback<void(content::CertificateRequestResultType)>;
+
   SecurityHandler();
   ~SecurityHandler() override;
 
+  static SecurityHandler* FromAgentHost(DevToolsAgentHostImpl* host);
+
+  // DevToolsDomainHandler overrides
   void Wire(UberDispatcher* dispatcher) override;
   void SetRenderFrameHost(RenderFrameHostImpl* host) override;
 
-  static SecurityHandler* FromAgentHost(DevToolsAgentHostImpl* host);
-
+  // Security::Backend overrides.
   Response Enable() override;
   Response Disable() override;
   Response ShowCertificateViewer() override;
+  Response HandleCertificateError(int event_id, const String& action) override;
+  Response SetOverrideCertificateErrors(bool override) override;
+
+  // NotifyCertificateError will send a CertificateError event. Returns true if
+  // the error is expected to be handled by a corresponding
+  // HandleCertificateError command, and false otherwise.
+  bool NotifyCertificateError(int cert_error,
+                              const GURL& request_url,
+                              CertErrorCallback callback);
 
  private:
+  using CertErrorCallbackMap = std::unordered_map<int, CertErrorCallback>;
+
   void AttachToRenderFrameHost();
+  void FlushPendingCertificateErrorNotifications();
 
   // WebContentsObserver overrides
   void DidChangeVisibleSecurityState() override;
+  void DidFinishNavigation(NavigationHandle* navigation_handle) override;
 
   std::unique_ptr<Security::Frontend> frontend_;
   bool enabled_;
   RenderFrameHostImpl* host_;
+  int last_cert_error_id_ = 0;
+  CertErrorCallbackMap cert_error_callbacks_;
+  bool certificate_errors_overriden_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(SecurityHandler);
 };