Do screenshot capture async for share intents.

chrome/android/java/AndroidManifest.xml

Index: chrome/android/java/AndroidManifest.xml
diff --git a/chrome/android/java/AndroidManifest.xml b/chrome/android/java/AndroidManifest.xml
index fa082e93c9c1737850c3f75b88af366a15bb60e5..a13a67e7460385b3a21071b0789ed9d329b73984 100644
--- a/chrome/android/java/AndroidManifest.xml
+++ b/chrome/android/java/AndroidManifest.xml
@@ -536,6 +536,14 @@ by a child template that "extends" this file.
                 android:resource="@xml/file_paths" />
         </provider>
 
+        <provider android:name="org.chromium.chrome.browser.BlockingFileProvider"
+            android:authorities="{{ manifest_package }}.BlockingFileProvider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+
         <provider android:name="org.chromium.chrome.browser.superviseduser.SupervisedUserContentProvider"
             android:authorities="{{ manifest_package }}.SupervisedUserProvider"
             android:permission="android.permission.INTERNET"