[gn] Move build to gypfiles

DEPS

 # Note: The buildbots evaluate this file with CWD set to the parent
 # directory and assume that the root of the checkout is in ./v8/, so
 # all paths in here must match this assumption.
 
 vars = {
   "git_url": "https://chromium.googlesource.com",
 }
 
 deps = {
+  # TODO(machenbach): Add this. Need to be committed locally as trybots run
+  # gclient sync on a deps change before applying any other change.
+  # "v8/build":
+  #  Var("git_url") + "/chromium/src/build.git" + "@" + "7181610b0c84e2cd87852a7f7d30c4e7e4ca32cd",
   "v8/tools/gyp":
     Var("git_url") + "/external/gyp.git" + "@" + "e24c83726b7294179f479a683eeb351568fcc4ee",
   "v8/third_party/icu":
     Var("git_url") + "/chromium/deps/icu.git" + "@" + "c291cde264469b20ca969ce8832088acb21e0c48",
   "v8/buildtools":
     Var("git_url") + "/chromium/buildtools.git" + "@" + "cdbd50759bf2289d2c9d3f1f7d02239b4b4b1209",
   "v8/base/trace_event/common":
     Var("git_url") + "/chromium/src/base/trace_event/common.git" + "@" + "c8c8665c2deaf1cc749d9f8e153256d4f67bf1b8",
   "v8/tools/swarming_client":
     Var('git_url') + '/external/swarming.client.git' + '@' + "df6e95e7669883c8fe9ef956c69a544154701a49",
@@ skipping 26 matching lines @@
 include_rules = [
   # Everybody can use some things.
   "+include",
   "+unicode",
   "+third_party/fdlibm",
 ]
 
 # checkdeps.py shouldn't check for includes in these directories:
 skip_child_includes = [
   "build",
+  "gypfiles",
   "third_party",
 ]
 
 hooks = [
   {
     # This clobbers when necessary (based on get_landmines.py). It must be the
     # first hook so that other things that get/generate into the output
     # directory will not subsequently be clobbered.
     'name': 'landmines',
     'pattern': '.',
     'action': [
         'python',
-        'v8/build/landmines.py',
+        'v8/gypfiles/landmines.py',
     ],
   },
   # Pull clang-format binaries using checked-in hashes.
   {
     "name": "clang_format_win",
     "pattern": ".",
     "action": [ "download_from_google_storage",
                 "--no_resume",
                 "--platform=win32",
                 "--no_auth",
@@ skipping 104 matching lines @@
                 "--platform=linux*",
                 "--no_auth",
                 "--bucket", "chromium-gn",
                 "-s", "v8/buildtools/linux64/gn.sha1",
     ],
   },
   {
     # Update the Windows toolchain if necessary.
     'name': 'win_toolchain',
     'pattern': '.',
-    'action': ['python', 'v8/build/vs_toolchain.py', 'update'],
+    'action': ['python', 'v8/gypfiles/vs_toolchain.py', 'update'],
   },
   # Pull binutils for linux, enabled debug fission for faster linking /
   # debugging when used with clang on Ubuntu Precise.
   # https://code.google.com/p/chromium/issues/detail?id=352046
   {
     'name': 'binutils',
     'pattern': 'v8/third_party/binutils',
     'action': [
         'python',
         'v8/third_party/binutils/download.py',
     ],
   },
   {
     # Pull gold plugin if needed or requested via GYP_DEFINES.
     # Note: This must run before the clang update.
     'name': 'gold_plugin',
     'pattern': '.',
-    'action': ['python', 'v8/build/download_gold_plugin.py'],
+    'action': ['python', 'v8/gypfiles/download_gold_plugin.py'],
   },
   {
     # Pull clang if needed or requested via GYP_DEFINES.
     # Note: On Win, this should run after win_toolchain, as it may use it.
     'name': 'clang',
     'pattern': '.',
     'action': ['python', 'v8/tools/clang/scripts/update.py', '--if-needed'],
   },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "pattern": ".",
-    "action": ["python", "v8/build/gyp_v8"],
+    "action": ["python", "v8/gypfiles/gyp_v8"],
   },
 ]