Fix the following browser_tests in the Linux GN build.

chrome/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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/module_args/v8.gni")
 import("//testing/test.gni")
 
@@ skipping 226 matching lines @@
       "//chrome:strings",
       "//chrome:packed_extra_resources",
       "//chrome:packed_resources",
       "//content/app/resources",
       "//crypto:platform",
       "//crypto:test_support",
       "//google_apis:test_support",
       "//net",
       "//net:net_resources",
       "//net:test_support",
-
-      #"//ppapi:ppapi_tests",  # TODO(GYP) this doesn't exist yet.
       "//skia",
       "//sync",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/hunspell",
       "//third_party/icu",
       "//third_party/libpng",
       "//third_party/npapi",
       "//third_party/zlib",
       "//ui/base:test_support",
       "//ui/web_dialogs:test_support",
     ]
 
     # Runtime dependencies
     datadeps = [
+      "//ppapi:ppapi_tests",
       "//third_party/mesa:osmesa",
     ]
 
     if (toolkit_views) {
       sources += rebase_path(
               chrome_tests_gypi_values.chrome_interactive_ui_test_views_sources,
               ".",
               "//chrome")
       deps += [
         "//ui/views",
@@ skipping 388 matching lines @@
       "//ui/resources",
       "//ui/web_dialogs:test_support",
       "//v8",
     ]
     if (has_d8_definition) {
       deps += [ ":browser_tests_js_webui" ]
     }
 
     # Runtime dependencies
     data_deps = [
-      #"//ppapi:ppapi_tests",  # TODO(GYP) this doesn't exist yet.
+      "//ppapi:ppapi_tests",
+
       #'../remoting/remoting.gyp:remoting_browser_test_resources',  TODO(GYP)
       #'../remoting/remoting.gyp:remoting_webapp_unittest',  TODO(GYP)
       "//third_party/mesa:osmesa",
       "//third_party/widevine/cdm:widevine_test_license_server",
     ]
 
     defines = [ "HAS_OUT_OF_PROC_TEST_RUNNER" ]
 
     # TODO(GYP) if (is_win) {
     #       ['incremental_chrome_dll==1', {
@@ skipping 997 matching lines @@
     }
     if (use_ozone) {
       # crbug.com/354036
       sources -= [ "../browser/chromeos/events/event_rewriter_unittest.cc" ]
     }
     if (!enable_plugin_installation) {
       sources -= [ "../browser/plugins/plugin_installer_unittest.cc" ]
     }
   }
 }