content: Move the remaining source files of webkit/ over here.

content/common/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")
 import("//content/common/common.gni")
 import("//third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
 
 if (is_chromeos && current_cpu != "arm") {
@@ skipping 168 matching lines @@
       "//media",
       "//media/midi",
       "//media:shared_memory_support",
       "//mojo/environment:chromium",
       "//sandbox",
       "//storage/common",
       "//third_party/WebKit/public:blink",
       "//third_party/mojo/src/mojo/edk/system",
       "//third_party/mojo/src/mojo/public/interfaces/application",
       "//ui/gl",
-      "//webkit/common/gpu",
     ]
   }
 
   defines = []
   include_dirs = []
   libs = []
   ldflags = []
 
   if (is_android && use_seccomp_bpf) {
     set_sources_assignment_filter([])
@@ skipping 288 matching lines @@
     "permission_service.mojom",
     "presentation/presentation_service.mojom",
     "render_frame_setup.mojom",
   ]
 
   deps = [
     "//content/public/common:mojo_bindings",
     "//third_party/mojo/src/mojo/public/interfaces/application:application",
   ]
 }