Read the bare minimum of data from the WebAPK launch intent.

chrome/android/webapk/libs/runtime_library/BUILD.gn

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/android/rules.gni")
 import("//chrome/android/webapk/libs/runtime_library_version.gni")
 
 # runtime_library_version.gni must be updated whenever the runtime library is
 # updated. The WebAPK re-extracts the runtime library from the Chrome APK when
 # |runtime_library_version| is incremented.
@@ skipping 13 matching lines @@
 # A standalone jar for the aidl's generated java files so that multiple places
 # can depend on the aidl.
 android_library("webapk_service_aidl_java") {
   srcjar_deps = [ ":webapk_service_aidl" ]
 }
 
 # runtime_library_from_assets_java cannot be used as a dependency of another
 # library because the dx tool expects files ending in .dex.jar
 android_library("runtime_library_for_assets_java") {
   dex_path = "$target_gen_dir/$runtime_library_dex_asset_name"
-  java_files = [
-    "src/org/chromium/webapk/lib/runtime_library/HostBrowserLauncher.java",
-    "src/org/chromium/webapk/lib/runtime_library/WebApkServiceImpl.java",
-  ]
-  deps = [
-    "//chrome/android/webapk/libs/common:common_java",
-  ]
+  java_files =
+      [ "src/org/chromium/webapk/lib/runtime_library/WebApkServiceImpl.java" ]
   srcjar_deps = [ ":webapk_service_aidl" ]
 }
 
 # The subset of runtime_library_from_assets_java needed for tests.
 android_library("runtime_library_for_tests_java") {
   java_files =
       [ "src/org/chromium/webapk/lib/runtime_library/WebApkServiceImpl.java" ]
   deps = [
     ":webapk_service_aidl_java",
   ]
@@ skipping 17 matching lines @@
   testonly = true
   java_files = [ "javatests/src/org/chromium/webapk/lib/runtime_library/WebApkServiceImplTest.java" ]
   deps = [
     ":runtime_library_for_tests_java",
     ":webapk_service_aidl_java",
     "//base:base_java_test_support",
     "//chrome/test/android:chrome_java_test_support",
     "//content/public/test/android:content_java_test_support",
   ]
 }