Merge the dart:uri library into dart:core and update the Uri class

runtime/vm/vm.gypi

Index: runtime/vm/vm.gypi
diff --git a/runtime/vm/vm.gypi b/runtime/vm/vm.gypi
index 058f5ceed7d69ceede11ab6044785cb7d4e45727..d5ceaebff3ea6f0d1f5419f4d9ef22a8a8f97c8c 100644
--- a/runtime/vm/vm.gypi
+++ b/runtime/vm/vm.gypi
@@ -26,7 +26,6 @@
     'json_patch_cc_file': '<(gen_source_dir)/json_patch_gen.cc',
     'typed_data_cc_file': '<(gen_source_dir)/typed_data_gen.cc',
     'typed_data_patch_cc_file': '<(gen_source_dir)/typed_data_patch_gen.cc',
-    'uri_cc_file': '<(gen_source_dir)/uri_gen.cc',
     'utf_cc_file': '<(gen_source_dir)/utf_gen.cc',
     'snapshot_test_dat_file': '<(gen_source_dir)/snapshot_test.dat',
     'snapshot_test_in_dat_file': 'snapshot_test_in.dat',
@@ -114,7 +113,6 @@
         'generate_mirrors_patch_cc_file',
         'generate_typed_data_cc_file',
         'generate_typed_data_patch_cc_file',
-        'generate_uri_cc_file',
         'generate_utf_cc_file',
       ],
       'includes': [
@@ -148,7 +146,6 @@
         '<(mirrors_patch_cc_file)',
         '<(typed_data_cc_file)',
         '<(typed_data_patch_cc_file)',
-        '<(uri_cc_file)',
         '<(utf_cc_file)',
       ],
       'include_dirs': [
@@ -921,39 +918,6 @@
       ]
     },
     {
-      'target_name': 'generate_uri_cc_file',
-      'type': 'none',
-      'toolsets':['host', 'target'],
-      'includes': [
-        # Load the shared uri sources.
-        '../../sdk/lib/uri/uri_sources.gypi',
-      ],
-      'actions': [
-        {
-          'action_name': 'generate_uri_cc',
-          'inputs': [
-            '../tools/gen_library_src_paths.py',
-            '<(libgen_in_cc_file)',
-            '<@(_sources)',
-          ],
-          'outputs': [
-            '<(uri_cc_file)',
-          ],
-          'action': [
-            'python',
-            'tools/gen_library_src_paths.py',
-            '--output', '<(uri_cc_file)',
-            '--input_cc', '<(libgen_in_cc_file)',
-            '--include', 'vm/bootstrap.h',
-            '--var_name', 'dart::Bootstrap::uri_source_paths_',
-            '--library_name', 'dart:uri',
-            '<@(_sources)',
-          ],
-          'message': 'Generating ''<(uri_cc_file)'' file.'
-        },
-      ]
-    },
-    {
       'target_name': 'generate_utf_cc_file',
       'type': 'none',
       'toolsets':['host', 'target'],