Photo Picker dialog: Request Storage permission if not already granted (e.g. through downloads).

ui/android/java/src/org/chromium/ui/UiUtils.java

Index: ui/android/java/src/org/chromium/ui/UiUtils.java
diff --git a/ui/android/java/src/org/chromium/ui/UiUtils.java b/ui/android/java/src/org/chromium/ui/UiUtils.java
index cfe14eddbe64912f80736c10477cf2ebeafcdf3c..279ff70bbab214d332b9ccbb44896f2937167936 100644
--- a/ui/android/java/src/org/chromium/ui/UiUtils.java
+++ b/ui/android/java/src/org/chromium/ui/UiUtils.java
@@ -103,6 +103,13 @@ public class UiUtils {
     }
 
     /**
+     * Returns whether a photo picker should be called.
+     */
+    public static boolean shouldShowPhotoPicker() {
+        return sPhotoPickerDelegate != null;
+    }
+
+    /**
      * Called to display the photo picker.
      * @param context  The context to use.
      * @param listener The listener that will be notified of the action the user took in the