[Sharing Hub] Add flag for the sharing hub

Bug: 1009124

Change-Id: Idae33b2a04cb9dbf90c03b6dd707311ac981cc27
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1830015
Commit-Queue: Kyle Milka <kmilka@chromium.org>
Reviewed-by: Ramya Nagarajan <ramyan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#700921}

chrome/android/java/src/org/chromium/chrome/browser/ChromeFeatureList.java

@@ -204,6 +204,7 @@ public abstract class ChromeFeatureList {
     public static final String CHROME_DUET_ADAPTIVE = "ChromeDuetAdaptive";
     public static final String DONT_AUTO_HIDE_BROWSER_CONTROLS = "DontAutoHideBrowserControls";
     public static final String CHROME_DUET_LABELED = "ChromeDuetLabeled";
+    public static final String CHROME_SHARING_HUB = "ChromeSharingHub";
     public static final String CHROME_SMART_SELECTION = "ChromeSmartSelection";
     public static final String CLEAR_OLD_BROWSING_DATA = "ClearOldBrowsingData";
     public static final String CLICK_TO_CALL_OPEN_DIALER_DIRECTLY = "ClickToCallOpenDialerDirectly";

chrome/browser/about_flags.cc

@@ -1978,6 +1978,9 @@ const FeatureEntry kFeatureEntries[] = {
     {"enable-chrome-duet-labels", flag_descriptions::kChromeDuetLabelsName,
      flag_descriptions::kChromeDuetLabelsDescription, kOsAndroid,
      FEATURE_VALUE_TYPE(chrome::android::kChromeDuetLabeled)},
+    {"chrome-sharing-hub", flag_descriptions::kChromeSharingHubName,
+     flag_descriptions::kChromeSharingHubDescription, kOsAndroid,
+     FEATURE_VALUE_TYPE(chrome::android::kChromeSharingHub)},
     {"enable-bookmark-reorder", flag_descriptions::kReorderBookmarksName,
      flag_descriptions::kReorderBookmarksDescription, kOsAndroid,
      FEATURE_VALUE_TYPE(chrome::android::kReorderBookmarks)},

chrome/browser/android/chrome_feature_list.cc

@@ -116,6 +116,7 @@ const base::Feature* kFeaturesExposedToJava[] = {
     &kDarkenWebsitesCheckboxInThemesSetting,
     &kDontAutoHideBrowserControls,
     &kChromeDuetLabeled,
+    &kChromeSharingHub,
     &kChromeSmartSelection,
     &kClickToCallOpenDialerDirectly,
     &kCommandLineOnNonRooted,
@@ -346,6 +347,9 @@ const base::Feature kDontAutoHideBrowserControls{
 const base::Feature kChromeDuetLabeled{"ChromeDuetLabeled",
                                        base::FEATURE_DISABLED_BY_DEFAULT};
 
+const base::Feature kChromeSharingHub{"ChromeSharingHub",
+                                      base::FEATURE_DISABLED_BY_DEFAULT};
+
 const base::Feature kChromeSmartSelection{"ChromeSmartSelection",
                                           base::FEATURE_ENABLED_BY_DEFAULT};
 

chrome/browser/android/chrome_feature_list.h

@@ -46,6 +46,7 @@ extern const base::Feature kChromeDuetFeature;
 extern const base::Feature kChromeDuetAdaptive;
 extern const base::Feature kDontAutoHideBrowserControls;
 extern const base::Feature kChromeDuetLabeled;
+extern const base::Feature kChromeSharingHub;
 extern const base::Feature kChromeSmartSelection;
 extern const base::Feature kClickToCallOpenDialerDirectly;
 extern const base::Feature kCommandLineOnNonRooted;

chrome/browser/flag-metadata.json

@@ -440,6 +440,11 @@
     "owners": ["gayane"],
     "expiry_milestone": 79
   },
+  {
+    "name": "chrome-sharing-hub",
+    "owners": ["kmilka"],
+    "expiry_milestone": 83
+  },
   {
     "name": "clear-old-browsing-data",
     "owners": [ "dullweber" ],

chrome/browser/flag_descriptions.cc

@@ -2390,6 +2390,10 @@ const char kChromeDuetLabelsName[] = "Chrome Duet Labels";
 const char kChromeDuetLabelsDescription[] =
     "Enables Chrome Duet (split toolbar) labels.";
 
+const char kChromeSharingHubName[] = "Chrome Sharing Hub";
+const char kChromeSharingHubDescription[] =
+    "Enables the Chrome Sharing Hub/custom share sheet.";
+
 const char kClearOldBrowsingDataName[] = "Clear older browsing data";
 const char kClearOldBrowsingDataDescription[] =
     "Enables clearing of browsing data which is older than a given time "

chrome/browser/flag_descriptions.h

@@ -1415,6 +1415,9 @@ extern const char kChromeDuetDescription[];
 extern const char kChromeDuetLabelsName[];
 extern const char kChromeDuetLabelsDescription[];
 
+extern const char kChromeSharingHubName[];
+extern const char kChromeSharingHubDescription[];
+
 extern const char kClearOldBrowsingDataName[];
 extern const char kClearOldBrowsingDataDescription[];
 

tools/metrics/histograms/enums.xml

@@ -36836,6 +36836,7 @@ from previous Chrome versions.
   <int value="549483647" label="EnableUnifiedMultiDeviceSettings:disabled"/>
   <int value="550378029" label="reset-app-list-install-state"/>
   <int value="550387510" label="NTPAssetDownloadSuggestions:disabled"/>
+  <int value="555959995" label="ChromeSharingHub:enabled"/>
   <int value="556555487"
       label="AutofillDoNotUploadSaveUnsupportedCards:disabled"/>
   <int value="557200974" label="WebSocketHandshakeReuseConnection:disabled"/>
@@ -36963,6 +36964,7 @@ from previous Chrome versions.
   <int value="715617684" label="OriginTrials:disabled"/>
   <int value="716073306" label="AssistantVoiceMatch:disabled"/>
   <int value="716080990" label="restrict-iframe-permissions"/>
+  <int value="717827121" label="ChromeSharingHub:disabled"/>
   <int value="719267310"
       label="KeepAliveRendererForKeepaliveRequests:disabled"/>
   <int value="720931007" label="WebAuthenticationBle:enabled"/>