Introduce a new feature WebBundlesFromNetwork

Bug: 1018640
Change-Id: Ia71ad149c92d8d125efecc1a285db4548ddf8f36
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1883268Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Kunihiko Sakamoto <ksakamoto@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Tsuyoshi Horo <horo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710039}

chrome/browser/ui/startup/bad_flags_prompt.cc

@@ -144,6 +144,7 @@ static const char* kBadFlags[] = {
 // "stability and security will suffer".
 static const base::Feature* kBadFeatureFlagsInAboutFlags[] = {
     &features::kAllowSignedHTTPExchangeCertsWithoutExtension,
+    &features::kWebBundlesFromNetwork,
 #if defined(OS_ANDROID)
     &chrome::android::kCommandLineOnNonRooted,
 #endif  // OS_ANDROID

content/public/common/content_features.cc

@@ -669,9 +669,17 @@ const base::Feature kWebAuthCable {
 
 // Controls whether Web Bundles (Bundled HTTP Exchanges) is enabled.
 // https://wicg.github.io/webpackage/draft-yasskin-wpack-bundled-exchanges.html
+// When this feature is enabled, Chromium can load unsigned Web Bundles local
+// file under file:// URL (and content:// URI on Android).
 const base::Feature kWebBundles{"WebBundles",
                                 base::FEATURE_DISABLED_BY_DEFAULT};
 
+// When this feature is enabled, Chromium will be able to load unsigned Web
+// Bundles file under https: URL and localhost http: URL.
+// TODO(crbug.com/1018640): Implement this feature.
+const base::Feature kWebBundlesFromNetwork{"WebBundlesFromNetwork",
+                                           base::FEATURE_DISABLED_BY_DEFAULT};
+
 // If WebGL Image Chromium is allowed, this feature controls whether it is
 // enabled.
 const base::Feature kWebGLImageChromium{"WebGLImageChromium",

content/public/common/content_features.h

@@ -139,6 +139,7 @@ CONTENT_EXPORT extern const base::Feature kWebAuth;
 CONTENT_EXPORT extern const base::Feature kWebAuthBle;
 CONTENT_EXPORT extern const base::Feature kWebAuthCable;
 CONTENT_EXPORT extern const base::Feature kWebBundles;
+CONTENT_EXPORT extern const base::Feature kWebBundlesFromNetwork;
 CONTENT_EXPORT extern const base::Feature kWebContentsOcclusion;
 CONTENT_EXPORT extern const base::Feature kWebGLImageChromium;
 CONTENT_EXPORT extern const base::Feature kWebPayments;