Geolocation: delete GpsLocationProvider and third_party/gpsd/

The GpsLocationProvider is not actually used anywhere, and has most likely bit
rotted after years of no maintenance. It is brittle code written for a
specific version (3.1) of gpsd that is now outdated.

The only Chrome version that had this feature enabled (ChromeOS) makes no use
of it as no hardware was ever shipped that used GPS.

TBR=jam,brettw

Review URL: https://codereview.chromium.org/25752005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227104 0039d316-1c4b-4281-b951-d872f2087c98

build/common.gypi

@@ -639,14 +639,6 @@
           'linux_use_gold_flags%': 0,
         }],
 
-        ['chromeos==1', {
-          'linux_use_libgps%': 1,
-        }, { # chromeos==0
-          # Do not use libgps on desktop Linux by default,
-          # see http://crbug.com/103751.
-          'linux_use_libgps%': 0,
-        }],
-
         ['OS=="android" or OS=="ios"', {
           'enable_captive_portal_detection%': 0,
         }, {
@@ -866,7 +858,6 @@
     'enable_background%': '<(enable_background)',
     'linux_use_gold_binary%': '<(linux_use_gold_binary)',
     'linux_use_gold_flags%': '<(linux_use_gold_flags)',
-    'linux_use_libgps%': '<(linux_use_libgps)',
     'use_canvas_skia%': '<(use_canvas_skia)',
     'test_isolation_mode%': '<(test_isolation_mode)',
     'test_isolation_outdir%': '<(test_isolation_outdir)',

build/linux/system.gyp

@@ -118,75 +118,6 @@
         },
       ],  # targets
     }],
-    ['linux_use_libgps==1', {
-      'targets': [
-        {
-          'target_name': 'libgps',
-          'type': 'static_library',
-          'all_dependent_settings': {
-            'defines': [
-              'USE_LIBGPS',
-            ],
-            'include_dirs': [
-              '<(SHARED_INTERMEDIATE_DIR)',
-            ],
-            'conditions': [
-              ['linux_link_libgps==1', {
-                'cflags': [
-                  '<!@(<(pkg-config) --cflags libgps)',
-                ],
-                'link_settings': {
-                  'ldflags': [
-                    '<!@(<(pkg-config) --libs-only-L --libs-only-other libgps)',
-                  ],
-                  'libraries': [
-                    '<!@(<(pkg-config) --libs-only-l libgps)',
-                  ],
-                }
-              }],
-            ],
-          },
-          'include_dirs': [
-            '../..',
-          ],
-          'hard_dependency': 1,
-          'actions': [
-            {
-              'variables': {
-                'output_h': '<(SHARED_INTERMEDIATE_DIR)/library_loaders/libgps.h',
-                'output_cc': '<(INTERMEDIATE_DIR)/libgps_loader.cc',
-                'generator': '../../tools/generate_library_loader/generate_library_loader.py',
-              },
-              'action_name': 'generate_libgps_loader',
-              'inputs': [
-                '<(generator)',
-              ],
-              'outputs': [
-                '<(output_h)',
-                '<(output_cc)',
-              ],
-              'action': ['python',
-                         '<(generator)',
-                         '--name', 'LibGpsLoader',
-                         '--output-h', '<(output_h)',
-                         '--output-cc', '<(output_cc)',
-                         '--header', '<gps.h>',
-                         '--bundled-header', '"third_party/gpsd/release-3.1/gps.h"',
-                         '--link-directly=<(linux_link_libgps)',
-                         'gps_open',
-                         'gps_close',
-                         'gps_read',
-                         # We don't use gps_shm_read() directly, just to make
-                         # sure that libgps has the shared memory support.
-                         'gps_shm_read',
-              ],
-              'message': 'Generating libgps library loader.',
-              'process_outputs_as_sources': 1,
-            },
-          ],
-        },
-      ],
-    }],
   ],  # conditions
   'targets': [
     {

content/DEPS

@@ -60,7 +60,6 @@ include_rules = [
   # Allow inclusion of third-party code:
   "+third_party/angle_dx11",
   "+third_party/flac",
-  "+third_party/gpsd",
   "+third_party/libjingle",
   "+third_party/mozilla",
   "+third_party/npapi/bindings",