[ReactNative] Enable resolveAssetSource for Image.android

Author: frantic

Libraries/Image/__tests__/resolveAssetSource-test.js

@@ -32,6 +32,12 @@ describe('resolveAssetSource', () => {
     expect(resolveAssetSource(source2)).toBe(source2);
   });
 
+  it('ignores any weird data', () => {
+    expect(resolveAssetSource(null)).toBe(null);
+    expect(resolveAssetSource(42)).toBe(null);
+    expect(resolveAssetSource('nonsense')).toBe(null);
+  });
+
   describe('bundle was loaded from network', () => {
     beforeEach(() => {
       SourceCode.scriptURL = 'http://10.0.0.1:8081/main.bundle';

Libraries/Image/resolveAssetSource.js

@@ -43,10 +43,11 @@ function pickScale(scales, deviceScale) {
   return scales[scales.length - 1] || 1;
 }
 
-// TODO(frantic):
-//   * Pick best scale and append @Nx to file path
-//   * We are currently using httpServerLocation for both http and in-app bundle
 function resolveAssetSource(source) {
+  if (!source || typeof source !== 'object') {
+    return null;
+  }
+
   if (!source.__packager_asset) {
     return source;
   }