Remove som GYP annotations, remove unused manifest.

content/shell/android/BUILD.gn

 # Copyright 2014 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("//build_overrides/v8.gni")
 import("//third_party/icu/config.gni")
 
 generate_jni("content_shell_jni_headers") {
@@ skipping 163 matching lines @@
     output = chromium_linker_test_manifest
   }
 
   android_resources("linker_resources") {
     testonly = true
     resource_dirs = [ "linker_test_apk/res" ]
     android_manifest = chromium_linker_test_manifest
     android_manifest_dep = ":chromium_linker_test_manifest"
   }
 
-  # GYP: //content/content_tests.gypi:chromium_linker_test_apk
   android_apk("chromium_linker_test_apk") {
     testonly = true
     deps = [
       ":content_shell_assets",
       ":content_shell_java",
       ":linker_resources",
       "//base:base_java",
       "//content/public/android:content_java",
       "//ui/android:ui_java",
     ]
     android_manifest = chromium_linker_test_manifest
     android_manifest_dep = ":chromium_linker_test_manifest"
     apk_name = "ChromiumLinkerTest"
     java_files = [
       "linker_test_apk/src/org/chromium/chromium_linker_test_apk/ChromiumLinkerTestActivity.java",
       "linker_test_apk/src/org/chromium/chromium_linker_test_apk/ChromiumLinkerTestApplication.java",
       "linker_test_apk/src/org/chromium/chromium_linker_test_apk/LinkerTests.java",
     ]
     shared_libraries = [ ":linker_test" ]
     use_chromium_linker = true
     enable_chromium_linker_tests = true
   }
 
-  # GYP: //content/content_tests.gypi:chromium_android_linker_test
   shared_library("linker_test") {
     testonly = true
     sources = [
       "linker_test_apk/chromium_linker_test_android.cc",
       "linker_test_apk/chromium_linker_test_linker_tests.cc",
     ]
 
     deps = [
       ":linker_test_jni_headers",
       "//build/config/sanitizers:deps",
       "//content/shell:content_shell_lib",
 
       # Required to include "content/public/browser/android/compositor.h"
       # in chromium_linker_test_android.cc :-(
       "//skia",
       "//third_party/re2",
     ]
   }
 
-  # GYP: //content/content_tests.gypi:chromium_android_linker_test_jni_headers
   generate_jni("linker_test_jni_headers") {
     testonly = true
     jni_package = "content/shell"
     sources = [
       "linker_test_apk/src/org/chromium/chromium_linker_test_apk/LinkerTests.java",
     ]
   }
 }
 
-# GYP: //content/content_tests.gypi:content_shell_browsertests_java"
 android_library("content_shell_browsertests_java") {
   testonly = true
   deps = [
     ":content_shell_java",
     "//base:base_java",
     "//content/public/android:content_java",
     "//testing/android/native_test:native_test_java",
     "//ui/android:ui_java",
   ]
   java_files = [ "browsertests/src/org/chromium/content_shell/browsertests/ContentShellBrowserTestActivity.java" ]
 }