[Offline Page] Offline page sharing implementation

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

Index: chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
index 536f4666a720e64511efbce5286b0d4527fa0cce..3c73bf65a2b14680a1b04e70cdd46ef6e0acbd8e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
@@ -41,6 +41,7 @@ import org.chromium.base.ActivityState;
 import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.ApplicationStatus;
 import org.chromium.base.BaseSwitches;
+import org.chromium.base.Callback;
 import org.chromium.base.CommandLine;
 import org.chromium.base.SysUtils;
 import org.chromium.base.TraceEvent;
@@ -84,6 +85,8 @@ import org.chromium.chrome.browser.metrics.UmaUtils;
 import org.chromium.chrome.browser.multiwindow.MultiWindowUtils;
 import org.chromium.chrome.browser.nfc.BeamController;
 import org.chromium.chrome.browser.nfc.BeamProvider;
+import org.chromium.chrome.browser.offlinepages.OfflinePageBridge;
+import org.chromium.chrome.browser.offlinepages.OfflinePageItem;
 import org.chromium.chrome.browser.offlinepages.OfflinePageUtils;
 import org.chromium.chrome.browser.omaha.UpdateMenuItemHelper;
 import org.chromium.chrome.browser.pageinfo.WebsiteSettingsPopup;
@@ -965,17 +968,43 @@ public abstract class ChromeActivity extends AsyncInitializationActivity
                         String url = currentTab.getOfflinePageOriginalUrl();
                         RecordHistogram.recordBooleanHistogram(
                                 "OfflinePages.SharedPageWasOffline", url != null);
-
-                        // If there is no entry in the offline pages DB for this tab, use the tab's
-                        // URL directly.
-                        if (url == null) url = currentTab.getUrl();
-
-                        ShareHelper.share(
-                                shareDirectly, mainActivity, currentTab.getTitle(), url, bitmap);
-                        if (shareDirectly) {
-                            RecordUserAction.record("MobileMenuDirectShare");
+                        boolean offlinePageSharing =
+                                (url != null && OfflinePageBridge.isPageSharingEnabled());
+
+                        if (!offlinePageSharing) {
+                            // If there is no entry in the offline pages DB for this tab, use the
+                            // tab's
+                            // URL directly.
+                            if (url == null) url = currentTab.getUrl();
+
+                            ShareHelper.share(shareDirectly, mainActivity, currentTab.getTitle(),
+                                    url, bitmap);
+                            if (shareDirectly) {
+                                RecordUserAction.record("MobileMenuDirectShare");
+                            } else {
+                                RecordUserAction.record("MobileMenuShare");
+                            }
                         } else {
-                            RecordUserAction.record("MobileMenuShare");
+                            // This is for experienmental feature Offline Page Sharing
+                            // If this page is an offline page, and the share the offline page
+                            // instead of url
+                            String offlineUrl = currentTab.getUrl();
+                            OfflinePageBridge offlinePageBridge =
+                                    OfflinePageBridge.getForProfile(currentTab.getProfile());
+
+                            offlinePageBridge.getPageByOfflineUrl(
+                                    offlineUrl, new Callback<OfflinePageItem>() {
+                                        @Override
+                                        public void onResult(OfflinePageItem item) {
+                                            if (item != null) {
+                                                String offlineFilePath = item.getFilePath();
+                                                Context mContext = getApplicationContext();
+                                                ShareHelper.shareOfflinePage(shareDirectly,
+                                                        mainActivity, currentTab.getTitle(),
+                                                        offlineFilePath, mContext);
+                                            }
+                                        }
+                                    });
                         }
                     }
                 };