[SharingHub] Change title for Screenshots preview (not from editor).

Screenshot: http://dr/file/d/1h746Ii3uaCombcXItnabwo-BQ6N7TSrv/view

Bug: 1124799, 1120093
Change-Id: I669745db424fd55b2453fe6def3aa6a72a1c9c51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2414922Reviewed-by: Tanya Gupta <tgupta@chromium.org>
Commit-Queue: Sophey Dong <sophey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807922}

chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/screenshot/ScreenshotShareSheetMediator.java

@@ -9,6 +9,7 @@ import android.graphics.Bitmap;
 import android.net.Uri;
 
 import org.chromium.base.Callback;
+import org.chromium.chrome.R;
 import org.chromium.chrome.browser.share.ChromeShareExtras;
 import org.chromium.chrome.browser.share.screenshot.ScreenshotShareSheetViewProperties.NoArgOperation;
 import org.chromium.chrome.browser.share.share_sheet.ChromeOptionShareCallback;
@@ -18,14 +19,19 @@ import org.chromium.components.browser_ui.share.ShareParams;
 import org.chromium.ui.base.WindowAndroid;
 import org.chromium.ui.modelutil.PropertyModel;
 
+import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.Date;
+import java.util.Locale;
 
 /**
  * ScreenshotShareSheetMediator is in charge of calculating and setting values for
  * ScreenshotShareSheetViewProperties.
  */
 class ScreenshotShareSheetMediator {
+    private static final String sIsoDateFormat = "yyyy-MM-dd";
+
     private final PropertyModel mModel;
     private final Context mContext;
     private final Runnable mSaveRunnable;
@@ -89,8 +95,9 @@ class ScreenshotShareSheetMediator {
         Bitmap bitmap = mModel.get(ScreenshotShareSheetViewProperties.SCREENSHOT_BITMAP);
 
         WindowAndroid window = mTab.getWindowAndroid();
-        // TODO(1124799): Change title to screenshot title.
-        String title = mTab.getTitle();
+        String isoDate = new SimpleDateFormat(sIsoDateFormat, Locale.getDefault())
+                                 .format(new Date(System.currentTimeMillis()));
+        String title = mContext.getString(R.string.screenshot_title_for_share, isoDate);
         Callback<Uri> callback = (bitmapUri) -> {
             ShareParams params =
                     new ShareParams.Builder(window, title, /*url=*/"")

chrome/browser/ui/android/strings/android_chrome_strings.grd

@@ -3902,6 +3902,10 @@ Cookies and other data may be used across open Incognito tabs.
         Share
       </message>
 
+      <message name="IDS_SCREENSHOT_TITLE_FOR_SHARE" desc="The title shared with the screenshot.">
+        Screenshot <ph name="CURRENT_DATE_ISO">%1$s<ex>2020-09-16</ex></ph>
+      </message>
+
       <message name="IDS_SCREENSHOT_FILENAME_PREFIX" desc="File name prefix for downloaded screenshot that is followed by timestamp.">
         chrome_screenshot_<ph name="CURRENT_TIMESTAMP_MS">%1$s<ex>1582667748515</ex></ph>
       </message>

chrome/browser/ui/android/strings/android_chrome_strings_grd/IDS_SCREENSHOT_TITLE_FOR_SHARE.png.sha1

+a4a9576afc3d56627286fe82a96156777baee6e5
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