[ios] Add Location Permissions Prompt Experiment Flags

Bug: 1138603
Change-Id: I72ecd463778caa7adac8a0ef041ec01dbd0c5f80
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2486071
Commit-Queue: Chris Lu <thegreenfrog@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#819394}

chrome/browser/flag-metadata.json

@@ -3034,6 +3034,21 @@
     // external dependencies.
     "expiry_milestone": -1
   },
+  {
+    "name": "location-change-string",
+    "owners": [ "thegreenfrog", "bling-team" ],
+    "expiry_milestone": 91
+  },
+  {
+    "name": "location-first-run-modal",
+    "owners": [ "thegreenfrog", "bling-team" ],
+    "expiry_milestone": 91
+  },
+  {
+    "name": "location-remove-first-run",
+    "owners": [ "thegreenfrog", "bling-team" ],
+    "expiry_milestone": 91
+  },
   {
     "name": "lock-screen-media-controls",
     "owners": [ "beccahughes", "media-dev" ],

ios/chrome/browser/flags/about_flags.mm

@@ -655,6 +655,16 @@ const flags_ui::FeatureEntry kFeatureEntries[] = {
      flag_descriptions::kIncognitoAuthenticationName,
      flag_descriptions::kIncognitoAuthenticationDescription, flags_ui::kOsIos,
      FEATURE_VALUE_TYPE(kIncognitoAuthentication)},
+    {"location-first-run-modal", flag_descriptions::kLocationFirstRunModalName,
+     flag_descriptions::kLocationFirstRunModalDescription, flags_ui::kOsIos,
+     FEATURE_VALUE_TYPE(kLocationFirstRunModal)},
+    {"location-remove-first-run",
+     flag_descriptions::kLocationRemoveFirstRunPromptName,
+     flag_descriptions::kLocationRemoveFirstRunPromptDescription,
+     flags_ui::kOsIos, FEATURE_VALUE_TYPE(kLocationRemoveFirstRunPrompt)},
+    {"location-change-string", flag_descriptions::kLocationStringChangeName,
+     flag_descriptions::kLocationStringChangeDescription, flags_ui::kOsIos,
+     FEATURE_VALUE_TYPE(kLocationStringChange)},
 };
 
 bool SkipConditionalFeatureEntry(const flags_ui::FeatureEntry& entry) {

ios/chrome/browser/flags/ios_chrome_flag_descriptions.cc

@@ -323,6 +323,24 @@ const char kIOSLookalikeUrlNavigationSuggestionsUIDescription[] =
     "When enabled, an interstitial will be shown on navigations to lookalike "
     "URLs.";
 
+const char kLocationFirstRunModalName[] =
+    "Location Permisssions First Run Modal";
+const char kLocationFirstRunModalDescription[] =
+    "When enabled, a modal detailing location data usage in Chrome will be "
+    "presented just before triggering the native location permissions prompt.";
+
+const char kLocationRemoveFirstRunPromptName[] =
+    "Remove Location Permissions Prompt in First Run";
+const char kLocationRemoveFirstRunPromptDescription[] =
+    "When enabled, a location permissions prompt will not be triggered right "
+    "after First Run anymore.";
+
+const char kLocationStringChangeName[] =
+    "Use New Location Permissions Prompt String";
+const char kLocationStringChangeDescription[] =
+    "When enabled, a better string will used in the location permissions "
+    "prompt.";
+
 const char kLockBottomToolbarName[] = "Lock bottom toolbar";
 const char kLockBottomToolbarDescription[] =
     "When enabled, the bottom toolbar will not get collapsed when scrolling "

ios/chrome/browser/flags/ios_chrome_flag_descriptions.h

@@ -279,6 +279,21 @@ extern const char kIOSLegacyTLSInterstitialsDescription[];
 extern const char kIOSLookalikeUrlNavigationSuggestionsUIName[];
 extern const char kIOSLookalikeUrlNavigationSuggestionsUIDescription[];
 
+// Title and description for the flag to add a First Run modal for location
+// permissions.
+extern const char kLocationFirstRunModalName[];
+extern const char kLocationFirstRunModalDescription[];
+
+// Title and description for the flag to remove the First Run location
+// permissions prompt.
+extern const char kLocationRemoveFirstRunPromptName[];
+extern const char kLocationRemoveFirstRunPromptDescription[];
+
+// Title and description for the flag to change the string in the location
+// permissions prompt.
+extern const char kLocationStringChangeName[];
+extern const char kLocationStringChangeDescription[];
+
 // Title and description for the flag to lock the bottom toolbar into place.
 extern const char kLockBottomToolbarName[];
 extern const char kLockBottomToolbarDescription[];

ios/chrome/browser/ui/ui_feature_flags.cc

@@ -76,3 +76,12 @@ const base::Feature kModernTabStrip{"ModernTabStrip",
 
 const base::Feature kIncognitoAuthentication{
     "enable-incognito-authentication-ios", base::FEATURE_DISABLED_BY_DEFAULT};
+
+const base::Feature kLocationRemoveFirstRunPrompt{
+    "LocationRemoveFirstRunPrompt", base::FEATURE_DISABLED_BY_DEFAULT};
+
+const base::Feature kLocationStringChange{"LocationStringChange",
+                                          base::FEATURE_DISABLED_BY_DEFAULT};
+
+const base::Feature kLocationFirstRunModal{"LocationFirstRunModal",
+                                           base::FEATURE_DISABLED_BY_DEFAULT};

ios/chrome/browser/ui/ui_feature_flags.h

@@ -84,4 +84,14 @@ extern const base::Feature kModernTabStrip;
 // Adds a setting to enable biometric authentication for incognito tabs.
 extern const base::Feature kIncognitoAuthentication;
 
+// Feature flag that removes the location permissions prompt from First Run.
+extern const base::Feature kLocationRemoveFirstRunPrompt;
+
+// Feature flag that changes the string in the location permissions prompt.
+extern const base::Feature kLocationStringChange;
+
+// Feature flag that adds a modal in First Run that details Chrome location data
+// usage.
+extern const base::Feature kLocationFirstRunModal;
+
 #endif  // IOS_CHROME_BROWSER_UI_UI_FEATURE_FLAGS_H_