Unfocus omnibox when share button is pressed

The omnibox needs to be unfocused to unsuppress the bottom sheet that
is triggered when attempting to share. This patch does that by
providing a runnable to the ShareButtonCoordinator that performs the
unfocus action.

Bug: 1135907
Change-Id: I3b9f14f76b90f13f381f910e4b495ebbecba9168
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2456508
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Reviewed-by: Theresa  <twellington@chromium.org>
Reviewed-by: Kyle Milka <kmilka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815118}

chrome/android/java/src/org/chromium/chrome/browser/share/ShareButtonController.java

@@ -68,11 +68,14 @@ public class ShareButtonController implements ButtonDataProvider, ConfigurationC
      * @param activityLifecycleDispatcher Dispatcher for activity lifecycle events, e.g.
      * configuration changes.
      * @param modalDialogManager dispatcher for modal lifecycles events
+     * @param onShareRunnable A {@link Runnable} to execute when a share event occurs. This object
+     *                        does not actually handle sharing, but can provide supplemental
+     *                        functionality when the share button is pressed.
      */
     public ShareButtonController(Context context, ActivityTabProvider tabProvider,
             ObservableSupplier<ShareDelegate> shareDelegateSupplier, ShareUtils shareUtils,
             ActivityLifecycleDispatcher activityLifecycleDispatcher,
-            ModalDialogManager modalDialogManager) {
+            ModalDialogManager modalDialogManager, Runnable onShareRunnable) {
         mContext = context;
 
         mActivityLifecycleDispatcher = activityLifecycleDispatcher;
@@ -89,6 +92,7 @@ public class ShareButtonController implements ButtonDataProvider, ConfigurationC
             Tab tab = mTabProvider.get();
             assert tab != null : "Tab became null after share button was displayed";
             if (tab == null) return;
+            if (onShareRunnable != null) onShareRunnable.run();
             RecordUserAction.record("MobileTopToolbarShareButton");
             shareDelegate.share(tab, /*shareDirectly=*/false);
         });

chrome/android/java/src/org/chromium/chrome/browser/ui/RootUiCoordinator.java

@@ -50,6 +50,7 @@ import org.chromium.chrome.browser.image_descriptions.ImageDescriptionsControlle
 import org.chromium.chrome.browser.lifecycle.Destroyable;
 import org.chromium.chrome.browser.lifecycle.InflationObserver;
 import org.chromium.chrome.browser.metrics.UkmRecorder;
+import org.chromium.chrome.browser.omnibox.LocationBar.OmniboxFocusReason;
 import org.chromium.chrome.browser.omnibox.geo.GeolocationHeader;
 import org.chromium.chrome.browser.paint_preview.PaintPreviewTabHelper;
 import org.chromium.chrome.browser.profiles.Profile;
@@ -528,7 +529,8 @@ public class RootUiCoordinator
                     mActivity, mActivity.getLifecycleDispatcher(), mProfileSupplier);
             ShareButtonController shareButtonController = new ShareButtonController(mActivity,
                     mActivityTabProvider, mShareDelegateSupplier, new ShareUtils(),
-                    mActivity.getLifecycleDispatcher(), mActivity.getModalDialogManager());
+                    mActivity.getLifecycleDispatcher(), mActivity.getModalDialogManager(),
+                    () -> mToolbarManager.setUrlBarFocus(false, OmniboxFocusReason.UNFOCUS));
             mButtonDataProviders = Arrays.asList(mIdentityDiscController, shareButtonController);
             mToolbarManager = new ToolbarManager(mActivity, mActivity.getBrowserControlsManager(),
                     mActivity.getFullscreenManager(), toolbarContainer,