Not build glue layer if use_webview_internal_framework is set

android_webview/glue/BUILD.gn

 # Copyright 2015 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/config.gni")
 import("//build/config/android/rules.gni")
 import("generate_resource_rewriter.gni")
 import("glue.gni")
 
 webview_framework_ijar =
     "$root_out_dir/lib.java/webview/frameworks.interface.jar"
 
 generate_interface_jar("framework_ijar") {
   input_jar = webview_framework_jar
   output_jar = webview_framework_ijar
 }
 
 generate_resource_rewriter("glue_resource_rewriter") {
   # Change deps? please modify glue_library_deps variable.
   deps = glue_library_deps
   package_name = "com.android.webview.chromium"
 }
 
-android_library("glue") {
-  # Change deps? please modify glue_library_deps variable.
-  deps = glue_library_deps
-  srcjar_deps = [ ":glue_resource_rewriter" ]
+if (!defined(use_webview_internal_framework) ||
+    !use_webview_internal_framework) {
+  android_library("glue") {
+    # Change deps? please modify glue_library_deps variable.
+    deps = glue_library_deps
+    srcjar_deps = [ ":glue_resource_rewriter" ]
 
-  alternative_android_sdk_ijar = webview_framework_ijar
-  alternative_android_sdk_ijar_dep = "//android_webview/glue:framework_ijar"
+    alternative_android_sdk_ijar = webview_framework_ijar
+    alternative_android_sdk_ijar_dep = "//android_webview/glue:framework_ijar"
 
-  java_files = [
-    "java/src/com/android/webview/chromium/ContentSettingsAdapter.java",
-    "java/src/com/android/webview/chromium/CookieManagerAdapter.java",
-    "java/src/com/android/webview/chromium/DrawGLFunctor.java",
-    "java/src/com/android/webview/chromium/GeolocationPermissionsAdapter.java",
-    "java/src/com/android/webview/chromium/GraphicsUtils.java",
-    "java/src/com/android/webview/chromium/LicenseActivity.java",
-    "java/src/com/android/webview/chromium/LicenseContentProvider.java",
-    "java/src/com/android/webview/chromium/ResourcesContextWrapperFactory.java",
-    "java/src/com/android/webview/chromium/WebBackForwardListChromium.java",
-    "java/src/com/android/webview/chromium/WebHistoryItemChromium.java",
-    "java/src/com/android/webview/chromium/WebIconDatabaseAdapter.java",
-    "java/src/com/android/webview/chromium/WebMessagePortAdapter.java",
-    "java/src/com/android/webview/chromium/WebStorageAdapter.java",
-    "java/src/com/android/webview/chromium/WebViewChromiumFactoryProvider.java",
-    "java/src/com/android/webview/chromium/WebViewChromium.java",
-    "java/src/com/android/webview/chromium/WebViewContentsClientAdapter.java",
-    "java/src/com/android/webview/chromium/WebViewDatabaseAdapter.java",
-    "java/src/com/android/webview/chromium/WebViewDelegateFactory.java",
-  ]
+    java_files = [
+      "java/src/com/android/webview/chromium/ContentSettingsAdapter.java",
+      "java/src/com/android/webview/chromium/CookieManagerAdapter.java",
+      "java/src/com/android/webview/chromium/DrawGLFunctor.java",
+      "java/src/com/android/webview/chromium/GeolocationPermissionsAdapter.java",
+      "java/src/com/android/webview/chromium/GraphicsUtils.java",
+      "java/src/com/android/webview/chromium/LicenseActivity.java",
+      "java/src/com/android/webview/chromium/LicenseContentProvider.java",
+      "java/src/com/android/webview/chromium/ResourcesContextWrapperFactory.java",
+      "java/src/com/android/webview/chromium/WebBackForwardListChromium.java",
+      "java/src/com/android/webview/chromium/WebHistoryItemChromium.java",
+      "java/src/com/android/webview/chromium/WebIconDatabaseAdapter.java",
+      "java/src/com/android/webview/chromium/WebMessagePortAdapter.java",
+      "java/src/com/android/webview/chromium/WebStorageAdapter.java",
+      "java/src/com/android/webview/chromium/WebViewChromiumFactoryProvider.java",
+      "java/src/com/android/webview/chromium/WebViewChromium.java",
+      "java/src/com/android/webview/chromium/WebViewContentsClientAdapter.java",
+      "java/src/com/android/webview/chromium/WebViewDatabaseAdapter.java",
+      "java/src/com/android/webview/chromium/WebViewDelegateFactory.java",
+    ]
+  }
 }