Revert of Public Sessions - prompt the user for pageCapture requests

chrome/browser/media/public_session_media_access_handler.h

Index: chrome/browser/media/public_session_media_access_handler.h
diff --git a/chrome/browser/media/public_session_media_access_handler.h b/chrome/browser/media/public_session_media_access_handler.h
index e809957b17a96891e3c9f03edd636bf93bbb957e..70e7aac8c24277cc8444eb986ea038afd28c3be5 100644
--- a/chrome/browser/media/public_session_media_access_handler.h
+++ b/chrome/browser/media/public_session_media_access_handler.h
@@ -11,7 +11,6 @@
 #include "chrome/browser/media/media_access_handler.h"
 #include "content/public/common/media_stream_request.h"
 #include "extensions/common/extension_id.h"
-#include "extensions/common/permissions/api_permission_set.h"
 
 // MediaAccessHandler for extension capturing requests in Public Sessions. This
 // class is implemented as a wrapper around ExtensionMediaAccessHandler. It
@@ -46,13 +45,38 @@
  private:
   // Helper function used to chain the HandleRequest call into the original
   // inside of ExtensionMediaAccessHandler.
-  void ChainHandleRequest(
-      content::WebContents* web_contents,
-      const content::MediaStreamRequest& request,
-      const content::MediaResponseCallback& callback,
-      const extensions::Extension* extension,
-      const extensions::PermissionIDSet& allowed_permissions);
+  void ChainHandleRequest(content::WebContents* web_contents,
+                          const content::MediaStreamRequest& request,
+                          const content::MediaResponseCallback& callback,
+                          const extensions::Extension* extension);
 
+  // Function used to resolve user decision regarding allowing audio/video.
+  void ResolvePermissionPrompt(content::WebContents* web_contents,
+                               const content::MediaStreamRequest& request,
+                               const content::MediaResponseCallback& callback,
+                               const extensions::Extension* extension,
+                               ExtensionInstallPrompt::Result prompt_result);
+
+  // Class used to cache user choice regarding allowing audio/video capture.
+  class UserChoice {
+   public:
+    // Helper function for checking if audio/video is allowed by user choice.
+    bool IsAllowed(content::MediaStreamType type) const;
+    // Helper function which returns true if audio/video wasn't prompted yet.
+    bool NeedsPrompting(content::MediaStreamType type) const;
+    void Set(content::MediaStreamType type, bool allowed);
+    void SetPrompted(content::MediaStreamType type);
+
+   private:
+    bool audio_prompted_ = false;
+    bool audio_allowed_ = false;
+    bool video_prompted_ = false;
+    bool video_allowed_ = false;
+  };
+
+  std::map<extensions::ExtensionId, UserChoice> user_choice_cache_;
+  std::map<extensions::ExtensionId, std::unique_ptr<ExtensionInstallPrompt>>
+      extension_install_prompt_map_;
   ExtensionMediaAccessHandler extension_media_access_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(PublicSessionMediaAccessHandler);