Integrate MediaPermission with PermissionManager by using PermissionContext.

chrome/browser/media/media_stream_device_permission_context.h

Index: chrome/browser/media/media_stream_device_permission_context.h
diff --git a/chrome/browser/media/media_stream_device_permission_context.h b/chrome/browser/media/media_stream_device_permission_context.h
index 6e6b3f5b6aa6b3ee3380e8f584add87fee543344..6d63888c6bd75e1498836f93e78b6f84441e76d6 100644
--- a/chrome/browser/media/media_stream_device_permission_context.h
+++ b/chrome/browser/media/media_stream_device_permission_context.h
@@ -33,6 +33,13 @@ class MediaStreamDevicePermissionContext : public PermissionContextBase {
       const GURL& requesting_origin,
       const GURL& embedding_origin) const override;
 
+  // For Pepper request, insecure origins are allowed to be persisted, hence we
+  // can't just call GetPermissionStatus when the requesting origin is insecure.
+  // Please see crbug.com/512301.
+  ContentSetting GetPermissionStatusForPepper(
+      const GURL& requesting_origin,
+      const GURL& embedding_origin) const;
+
   void ResetPermission(const GURL& requesting_origin,
                        const GURL& embedding_origin) override;
 
@@ -40,6 +47,10 @@ class MediaStreamDevicePermissionContext : public PermissionContextBase {
                                const PermissionRequestID& id) override;
 
  private:
+  ContentSetting GetPermissionStatusInternal(const GURL& requesting_origin,
+                                             const GURL& embedding_origin,
+                                             bool is_pepper_request) const;
+
   // PermissionContextBase:
   bool IsRestrictedToSecureOrigins() const override;