GN: Make content and content_shell work when !enable_plugins

content/test/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/features.gni")
 import("//build/config/ui.gni")
 
 content_tests_gypi_values = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("../content_tests.gypi"),
@@ skipping 26 matching lines @@
   ]
 
   if (!is_ios) {
     sources = rebase_path(content_tests_gypi_values.test_support_content_sources,
                           ".", "//content")
 
     deps += [
       "//content/browser/speech/proto",
       "//content/child",
       "//content/gpu",
-      "//content/ppapi_plugin",
       "//content/public/renderer",
       "//content/public/utility",
       "//cc",
       "//cc:test_support",
       "//media",
       "//ppapi:ppapi_host",
       "//ppapi:ppapi_proxy",
       "//ppapi:ppapi_shared",
       "//ppapi:ppapi_unittest_shared",
       "//storage/browser",
       "//storage/common",
       "//third_party/WebKit/public:blink",
       "//ui/surface",
       "//v8",
       "//webkit/common/gpu",
     ]
 
     forward_dependent_configs_from = [
       "//third_party/WebKit/public:blink",
     ]
 
+    if (enable_plugins) {
+      deps += [ "//content/ppapi_plugin" ]
+    }
+
     if (enable_webrtc) {
       # TODO(GYP) remove this when libjingle is converted.
       configs += [ "//third_party/libjingle:jingle_direct_dependent_configs" ]
 
       sources += [
         "../renderer/media/mock_media_stream_dispatcher.cc",
         "../renderer/media/mock_media_stream_dispatcher.h",
         "../renderer/media/mock_peer_connection_impl.cc",
         "../renderer/media/mock_peer_connection_impl.h",
         "../renderer/media/mock_web_rtc_peer_connection_handler_client.cc",
         "../renderer/media/mock_web_rtc_peer_connection_handler_client.h",
         "../renderer/media/webrtc/mock_peer_connection_dependency_factory.cc",
         "../renderer/media/webrtc/mock_peer_connection_dependency_factory.h",
       ]
 
       deps += [
         #"//third_party/libjingle:webrtc",  TODO(GYP)
         #"//third_party/libjingle:peerconnection",  TODO(GYP)
         "//third_party/webrtc/modules/video_capture",
       ]
     }
+    if (!enable_plugins) {
+      sources -= [ "ppapi_unittest.cc" ]
+    }
 
     if (use_glib) {
       configs += [ "//build/config/linux:glib" ]
     }
 
     if (use_aura) {
       deps += [
         "//ui/aura:test_support",
         "//ui/resources:ui_test_pak",
         "//ui/wm",
@@ skipping 53 matching lines @@
 
     if (is_android) {
       #deps += [ "test_support_content_jni_headers" ]  TODO(GYP)
     }
   }
 
 }  # !is_ios
 
 # TODO(GYP): Unit test targets