Revert 236542 "Run GN as part of runhooks."

trunk/src/build/gyp_chromium

Index: trunk/src/build/gyp_chromium
===================================================================
--- trunk/src/build/gyp_chromium	(revision 236542)
+++ trunk/src/build/gyp_chromium	(working copy)
@@ -20,9 +20,6 @@
 sys.path.insert(0, os.path.join(chrome_src, 'tools', 'gyp', 'pylib'))
 import gyp
 
-# Assume this file is in a one-level-deep subdirectory of the source root.
-SRC_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-
 # Add paths so that pymod_do_main(...) can import files.
 sys.path.insert(1, os.path.join(chrome_src, 'tools', 'generate_shim_headers'))
 sys.path.insert(1, os.path.join(chrome_src, 'tools', 'grit'))
@@ -53,7 +50,6 @@
 else:
   psyco = None
 
-
 def additional_include_files(args=[]):
   """
   Returns a list of additional (.gypi) files to include, without
@@ -83,33 +79,6 @@
 
   return result
 
-
-def RunGN():
-  """Runs GN, returning True if it succeeded, printing an error and returning
-  false if not."""
-  # The binaries in platform-specific subdirectories in src/tools/gn/bin.
-  gnpath = SRC_DIR + '/tools/gn/bin/'
-  if sys.platform == 'win32':
-    gnpath += 'win/gn.exe'
-  elif sys.platform.startswith('linux'):
-    gnpath += 'linux/gn'
-  elif sys.platform == 'darwin':
-    gnpath += 'mac/gn'
-  else:
-    print 'Unknown platform for GN: ', sys.platform
-    return False
-
-  print 'Generating gyp files from GN...'
-  print 'platform = ', sys.platform
-  print 'binary = ', gnpath
-
-  # Need to pass both the source root (the bots don't run this command from
-  # within the source tree) as well as set the is_gyp value so the BUILD files
-  # to know they're being run under GYP.
-  args = [gnpath, 'gyp', '-q', '--root=' + chrome_src, '--args=is_gyp=true']
-  return subprocess.call(args) == 0
-
-
 if __name__ == '__main__':
   args = sys.argv[1:]
 
@@ -122,9 +91,6 @@
     psyco.profile()
     print "Enabled Psyco JIT."
 
-  if not RunGN():
-    sys.exit(1)
-
   # Fall back on hermetic python if we happen to get run under cygwin.
   # TODO(bradnelson): take this out once this issue is fixed:
   #    http://code.google.com/p/gyp/issues/detail?id=177