Moved files under Source/bindings/v8 to Source/bindings/core/v8.

Source/core/core.gni

 # 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.
 
 blink_core_output_dir = "$root_gen_dir/blink/core"
 
 # This file is the GN version of core.gypi. We rebase most paths to be absolute
 # so these lists can be used by BUILD files in different directories without
 # worrying about the base directory.
 _gypi = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("core.gypi"),
       "--replace=<(SHARED_INTERMEDIATE_DIR)=$root_gen_dir",
       "--replace=<(blink_core_output_dir)=$blink_core_output_dir"],
     "scope",
     [ "core.gypi" ])
 
 # Files for which bindings (.cpp and .h files) will be generated.
 core_idl_files = get_path_info(_gypi.core_idl_files, "abspath")
 
 # 'partial interface', target (right side of) 'implements', and
-# interfaces with static bindings (in bindings/v8/)
+# interfaces with static bindings (in bindings/core/v8/)
 core_dependency_idl_files =
   get_path_info(_gypi.core_dependency_idl_files, "abspath")
 
 # Interfaces that inherit from Event, including Event itself.
 core_event_idl_files = get_path_info(_gypi.core_event_idl_files, "abspath")
 
 webcore_files = get_path_info(_gypi.webcore_files, "abspath")
 webcore_dom_files = get_path_info(_gypi.webcore_dom_files, "abspath")
 webcore_html_files = get_path_info(_gypi.webcore_html_files, "abspath")
 webcore_svg_files = get_path_info(_gypi.webcore_svg_files, "abspath")
 webcore_testing_idl_files = get_path_info(_gypi.webcore_testing_idl_files, "abspath")
 generated_webcore_testing_idl_files =
   get_path_info(_gypi.generated_webcore_testing_idl_files, "abspath")
 webcore_testing_files = get_path_info(_gypi.webcore_testing_files, "abspath")
 core_unittest_files = get_path_info(_gypi.core_unittest_files, "abspath")