feat(27255): allow local modification for remote feature flags

app/scripts/lib/manifestFlags.ts

@@ -60,6 +60,18 @@ export type ManifestFlags = {
      */
     forceEnable?: boolean;
   };
+  /**
+   * Feature flags to control business logic behavior
+   */
+  remoteFeatureFlags?: {
+    /**
+     * A test remote featureflag for threshold
+     */
+    testFlagForThreshold: {
+      name: string;
+      value: string;
+    };
+  };
 };
 
 // eslint-disable-next-line @typescript-eslint/consistent-type-definitions -- you can't extend a type, we want this to be an interface

development/build/manifest.js

@@ -11,6 +11,7 @@ const baradDurManifest = isManifestV3
   ? require('../../app/manifest/v3/_barad_dur.json')
   : require('../../app/manifest/v2/_barad_dur.json');
 const { loadBuildTypesConfig } = require('../lib/build-type');
+const manifestFlags = require('../../manifest-flags.json');
 
 const { TASKS, ENVIRONMENT } = require('./constants');
 const { createTask, composeSeries } = require('./task');
@@ -47,8 +48,10 @@ function createManifestTasks({
           browserVersionMap[platform],
           await getBuildModifications(buildType, platform),
           customArrayMerge,
+          {
+            _flags: manifestFlags,
+          },
         );
-
         modifyNameAndDescForNonProd(result);
 
         const dir = path.join('.', 'dist', platform);

development/webpack/utils/plugins/ManifestPlugin/helpers.ts

@@ -1,3 +1,5 @@
+import manifestFlags from '../../../../../manifest-flags.json';
+
 /**
  * Returns a function that will transform a manifest JSON object based on the
  * given build args.
@@ -24,6 +26,17 @@ export function transformManifest(args: { lockdown: boolean; test: boolean }) {
     }
   }
 
+  /**
+   * This function sets predefined flags in the manifest's _flags property.
+   *
+   * @param browserManifest - The Chrome extension manifest object to modify
+   */
+  function addManifestFlags(browserManifest: chrome.runtime.Manifest) {
+    browserManifest._flags = manifestFlags;
+  }
+
+  transforms.push(addManifestFlags);
+
   if (!args.lockdown) {
     // remove lockdown scripts from content_scripts
     transforms.push(removeLockdown);

lavamoat/browserify/beta/policy.json

@@ -5650,4 +5650,4 @@
       }
     }
   }
-}
+}

lavamoat/browserify/flask/policy.json

@@ -5650,4 +5650,4 @@
       }
     }
   }
-}
+}

lavamoat/browserify/main/policy.json

@@ -5650,4 +5650,4 @@
       }
     }
   }
-}
+}

lavamoat/browserify/mmi/policy.json

@@ -5742,4 +5742,4 @@
       }
     }
   }
-}
+}