[Android WebAPKs] Allow new splash webapk to mask splash icon

Previously, new splash webapks were not masking adaptive icon when
it was used in splash screen. This CL fixes that.

Bug: 977173
Change-Id: I6a38aec93369d6d7fda4fbba38f483c25b9b5960
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1891138Reviewed-by: Peter Kotwicz <pkotwicz@chromium.org>
Commit-Queue: Henry Jian <hzjian@google.com>
Cr-Commit-Position: refs/heads/master@{#710967}

chrome/android/webapk/shell_apk/current_version/current_version.gni

@@ -12,4 +12,4 @@
 # //chrome/android/webapk/shell_apk:webapk is changed. This includes
 # Java files, Android resource files and AndroidManifest.xml. Does not affect
 # Chrome.apk
-current_shell_apk_version = 115
+current_shell_apk_version = 116

chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/h2o/SplashUtils.java

@@ -30,8 +30,14 @@ public class SplashUtils {
         Bitmap icon = WebApkUtils.decodeBitmapFromDrawable(resources, R.drawable.splash_icon);
         int backgroundColor = WebApkUtils.getColor(resources, R.color.background_color_non_empty);
 
+        boolean isIconAdaptive = false;
+        try {
+            isIconAdaptive = resources.getBoolean(R.bool.is_splash_icon_maskable);
+        } catch (Resources.NotFoundException e) {
+        }
+
         FrameLayout layout = new FrameLayout(context);
-        SplashLayout.createLayout(context, layout, icon, false /* isIconAdaptive */,
+        SplashLayout.createLayout(context, layout, icon, isIconAdaptive,
                 false /* isIconGenerated */, resources.getString(R.string.name),
                 WebApkUtils.shouldUseLightForegroundOnBackground(backgroundColor));
         layout.setBackgroundColor(backgroundColor);