media: Refactor PlatformVerificationFlow.

chrome/browser/chromeos/attestation/platform_verification_dialog.h

Index: chrome/browser/chromeos/attestation/platform_verification_dialog.h
diff --git a/chrome/browser/chromeos/attestation/platform_verification_dialog.h b/chrome/browser/chromeos/attestation/platform_verification_dialog.h
index 50aef91bbaf132b8c368b918259f8ac41e2b1c7f..29675061c4aa5434b2e6f26414af896d74b3a44e 100644
--- a/chrome/browser/chromeos/attestation/platform_verification_dialog.h
+++ b/chrome/browser/chromeos/attestation/platform_verification_dialog.h
@@ -8,7 +8,6 @@
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/strings/string16.h"
-#include "chrome/browser/chromeos/attestation/platform_verification_flow.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "ui/views/controls/styled_label_listener.h"
 #include "ui/views/window/dialog_delegate.h"
@@ -25,23 +24,29 @@ class PlatformVerificationDialog : public views::DialogDelegateView,
                                    public views::StyledLabelListener,
                                    public content::WebContentsObserver {
  public:
+  enum ConsentResponse {
+    CONSENT_RESPONSE_NONE,
+    CONSENT_RESPONSE_ALLOW,
+    CONSENT_RESPONSE_DENY
+  };
+
+  using ConsentCallback = base::Callback<void(ConsentResponse response)>;
+
   // Initializes a tab-modal dialog for |web_contents| and |requesting_origin|
   // and shows it. Returns a non-owning pointer to the widget so that caller can
   // close the dialog and cancel the request. The returned widget is only
   // guaranteed to be valid before |callback| is called.
-  static views::Widget* ShowDialog(
-      content::WebContents* web_contents,
-      const GURL& requesting_origin,
-      const PlatformVerificationFlow::Delegate::ConsentCallback& callback);
+  static views::Widget* ShowDialog(content::WebContents* web_contents,
+                                   const GURL& requesting_origin,
+                                   const ConsentCallback& callback);
 
  protected:
   ~PlatformVerificationDialog() override;
 
  private:
-  PlatformVerificationDialog(
-      content::WebContents* web_contents,
-      const base::string16& domain,
-      const PlatformVerificationFlow::Delegate::ConsentCallback& callback);
+  PlatformVerificationDialog(content::WebContents* web_contents,
+                             const base::string16& domain,
+                             const ConsentCallback& callback);
 
   // views::DialogDelegate:
   bool Cancel() override;
@@ -65,7 +70,7 @@ class PlatformVerificationDialog : public views::DialogDelegateView,
       content::NavigationController::ReloadType reload_type) override;
 
   base::string16 domain_;
-  PlatformVerificationFlow::Delegate::ConsentCallback callback_;
+  ConsentCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PlatformVerificationDialog);
 };