Copy Crashpad into the Chrome tree instead of importing it via DEPS

DEPS

 # This file is used to manage the dependencies of the Chromium src repo. It is
 # used by gclient to determine what version of each dependency to check out, and
 # where.
 #
 # For more information, please refer to the official documentation:
 #   https://sites.google.com/a/chromium.org/dev/developers/how-tos/get-the-code
 #
 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 #
@@ skipping 108 matching lines @@
 
   'src/testing/gmock':
    Var('chromium_git') + '/external/googlemock.git' + '@' + '0421b6f358139f02e102c9c332ce19a33faf75be', # from svn revision 566
 
   'src/third_party/angle':
    Var('chromium_git') + '/angle/angle.git' + '@' +  Var('angle_revision'),
 
   'src/third_party/colorama/src':
    Var('chromium_git') + '/external/colorama.git' + '@' + '799604a1041e9b3bc5d2789ecbd7e8db2e18e6b8',
 
-  'src/third_party/crashpad/crashpad':
-   Var('chromium_git') + '/crashpad/crashpad.git' + '@' + '6bebb10829332dee5c7315abafb0a8bf32840c15',
-
   'src/third_party/icu':
    Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '42c58d4e49f2250039f0e98d43e0b76e8f5ca024',
 
   'src/third_party/libexif/sources':
    Var('chromium_git') + '/chromium/deps/libexif/sources.git' + '@' + 'ed98343daabd7b4497f97fda972e132e6877c48a',
 
   'src/third_party/hunspell_dictionaries':
    Var('chromium_git') + '/chromium/deps/hunspell_dictionaries.git' + '@' + 'c106afdcec5d3de2622e19f1b3294c47bbd8bd72',
 
   'src/third_party/safe_browsing/testing':
@@ skipping 672 matching lines @@
   },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     'name': 'gyp',
     'pattern': '.',
     'action': ['python', 'src/build/gyp_chromium'],
   },
 ]