Add lots of GN targets

chrome/chrome_browser.gypi

 # Copyright 2012 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.
 
 {
   'variables': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 3428 matching lines @@
       'sources': [ 'browser/net/probe_message.proto' ],
       'variables': {
         'proto_in_dir': 'browser/net',
         'proto_out_dir': 'chrome/browser/net',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
     {
       # Protobuf compiler / generator for the safebrowsing chunk
       # protocol buffer.
+      # GN version: //chrome/browser/safe_browsing:chunk_proto
       'target_name': 'safe_browsing_chunk_proto',
       'type': 'static_library',
       'sources': [ 'browser/safe_browsing/chunk.proto' ],
       'variables': {
         'proto_in_dir': 'browser/safe_browsing',
         'proto_out_dir': 'chrome/browser/safe_browsing',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
     {
       # Protobuf compiler / generator for the safebrowsing reporting
       # protocol buffer.
+      # GN version: //chrome/browser/safe_browsing:report_proto
       'target_name': 'safe_browsing_report_proto',
       'type': 'static_library',
       'sources': [ 'browser/safe_browsing/report.proto' ],
       'variables': {
         'proto_in_dir': 'browser/safe_browsing',
         'proto_out_dir': 'chrome/browser/safe_browsing',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
     {
@@ skipping 117 matching lines @@
             'package_name': 'org/chromium/chrome/browser',
             'template_deps': ['browser/android/tab_load_status.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }