Remove disable-embedded-shared-worker flag and shared worker process related codes.

content/content.gyp

Index: content/content.gyp
diff --git a/content/content.gyp b/content/content.gyp
index 6d4fb7e6c9cffd1d9c5dd639443a56e864092274..a961753b5349cf12b2bc2a7fe82f0c20d889e9e0 100644
--- a/content/content.gyp
+++ b/content/content.gyp
@@ -58,7 +58,6 @@
                 'content_ppapi_plugin',
                 'content_renderer',
                 'content_utility',
-                'content_worker',
               ],
             }],
           ],
@@ -253,19 +252,6 @@
                 'content_common',
               ],
             },
-            {
-              # GN version: //content/worker
-              'target_name': 'content_worker',
-              'type': 'static_library',
-              'variables': { 'enable_wexit_time_destructors': 1, },
-              'includes': [
-                'content_worker.gypi',
-              ],
-              'dependencies': [
-                'content_child',
-                'content_common',
-              ],
-            },
           ],
         }],
       ],
@@ -296,7 +282,6 @@
             'content_ppapi_plugin.gypi',
             'content_renderer.gypi',
             'content_utility.gypi',
-            'content_worker.gypi',
           ],
           'msvs_settings': {
             'VCLinkerTool': {
@@ -371,11 +356,6 @@
           'dependencies': ['content'],
           'export_dependent_settings': ['content'],
         },
-        {
-          'target_name': 'content_worker',
-          'type': 'none',
-          'dependencies': ['content'],
-        },
       ],
     }],
     ['OS == "android"', {