Add chrome flags for kSSLCommittedInterstitials

Useful for testing.

Bug: 987407
Change-Id: I9af198d67e224f52753b31c7722228c626128b4e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2013519Reviewed-by: Eugene But <eugenebut@chromium.org>
Commit-Queue: Livvie Lin <livvielin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#733839}

ios/chrome/browser/flags/about_flags.mm

@@ -593,6 +593,10 @@ const flags_ui::FeatureEntry kFeatureEntries[] = {
     {"clear-synced-data", flag_descriptions::kClearSyncedDataName,
      flag_descriptions::kClearSyncedDataDescription, flags_ui::kOsIos,
      FEATURE_VALUE_TYPE(kClearSyncedData)},
+    {"ssl-committed-interstitials",
+     flag_descriptions::kSSLCommittedInterstitialsName,
+     flag_descriptions::kSSLCommittedInterstitialsDescription, flags_ui::kOsIos,
+     FEATURE_VALUE_TYPE(web::features::kSSLCommittedInterstitials)},
 };
 
 // Add all switches from experimental flags to |command_line|.

ios/chrome/browser/flags/ios_chrome_flag_descriptions.cc

@@ -344,6 +344,12 @@ const char kSnapshotDrawViewName[] = "Use DrawViewHierarchy for Snapshots";
 const char kSnapshotDrawViewDescription[] =
     "When enabled, snapshots will be taken using |-drawViewHierarchy:|.";
 
+const char kSSLCommittedInterstitialsName[] =
+    "Enable SSL committed interstitials";
+const char kSSLCommittedInterstitialsDescription[] =
+    "When enabled, SSL interstitial pages will be committed rather than using "
+    "an overlay on the page.";
+
 const char kForceStartupSigninPromoName[] = "Display the startup sign-in promo";
 const char kForceStartupSigninPromoDescription[] =
     "When enabled, the startup sign-in promo is always displayed when starting "

ios/chrome/browser/flags/ios_chrome_flag_descriptions.h

@@ -303,6 +303,10 @@ extern const char kShowAutofillTypePredictionsDescription[];
 extern const char kSnapshotDrawViewName[];
 extern const char kSnapshotDrawViewDescription[];
 
+// Title and description for the flag to enable SSL committed interstitials.
+extern const char kSSLCommittedInterstitialsName[];
+extern const char kSSLCommittedInterstitialsDescription[];
+
 // Title and description for the flag to trigger the startup sign-in promo.
 extern const char kForceStartupSigninPromoName[];
 extern const char kForceStartupSigninPromoDescription[];