Build Observatory as part of runtime

runtime/bin/bin.gypi

Index: runtime/bin/bin.gypi
diff --git a/runtime/bin/bin.gypi b/runtime/bin/bin.gypi
index e0787285a32ea65bf8d74e93e3c816e86a5185fc..9ddd1a867c7fa8e4c2b18efff0a120557c3b04a3 100644
--- a/runtime/bin/bin.gypi
+++ b/runtime/bin/bin.gypi
@@ -13,6 +13,8 @@
     'snapshot_in_cc_file': 'snapshot_in.cc',
     'snapshot_bin_file': '<(gen_source_dir)/snapshot_gen.bin',
     'resources_cc_file': '<(gen_source_dir)/resources_gen.cc',
+    'bootstrap_resources_cc_file':
+        '<(gen_source_dir)/bootstrap_resources_gen.cc',
     'snapshot_cc_file': '<(gen_source_dir)/snapshot_gen.cc',
   },
   'targets': [
@@ -358,6 +360,9 @@
       'target_name': 'generate_resources_cc_file',
       'type': 'none',
       'toolsets':['host'],
+      'dependencies': [
+        'build_observatory#host',
+      ],
       'includes': [
         'resources_sources.gypi',
       ],
@@ -367,8 +372,8 @@
           'inputs': [
             '../tools/create_resources.py',
             # The following two files are used to trigger a rebuild.
-            'vmservice/observatory/deployed/web/index.html',
-            'vmservice/observatory/deployed/web/index.html_bootstrap.dart.js',
+            '<(PRODUCT_DIR)/observatory/deployed/web/index.html',
+            '<(PRODUCT_DIR)/observatory/deployed/web/index.html_bootstrap.dart.js',
             '<@(_sources)',
           ],
           'outputs': [
@@ -382,7 +387,7 @@
             '--inner_namespace', 'bin',
             '--table_name', 'service_bin',
             '--root_prefix', 'bin/',
-            '--client_root', 'bin/vmservice/observatory/deployed/',
+            '--client_root', '<(PRODUCT_DIR)/observatory/deployed/web/',
             '<@(_sources)'
           ],
           'message': 'Generating ''<(resources_cc_file)'' file.'
@@ -390,6 +395,38 @@
       ]
     },
     {
+      'target_name': 'generate_bootstrap_resources_cc_file',
+      'type': 'none',
+      'toolsets':['host'],
+      'includes': [
+        'resources_sources.gypi',
+      ],
+      'actions': [
+        {
+          'action_name': 'generate_resources_cc',
+          'inputs': [
+            '../tools/create_resources.py',
+            '<@(_sources)',
+          ],
+          'outputs': [
+            '<(bootstrap_resources_cc_file)',
+          ],
+          'action': [
+            'python',
+            'tools/create_resources.py',
+            '--output', '<(bootstrap_resources_cc_file)',
+            '--outer_namespace', 'dart',
+            '--inner_namespace', 'bin',
+            '--table_name', 'service_bin',
+            '--root_prefix', 'bin/',
+            '<@(_sources)'
+          ],
+          'message':
+              'Generating ''<(bootstrap_resources_cc_file)'' file.'
+        },
+      ]
+    },
+    {
       # dart binary with a snapshot of corelibs built in.
       'target_name': 'dart',
       'type': 'executable',
@@ -397,6 +434,7 @@
         'libdart',
         'libdart_builtin',
         'libdart_io',
+        'build_observatory#host',
         'generate_snapshot_file#host',
         'generate_resources_cc_file#host',
       ],
@@ -440,6 +478,61 @@
       },
     },
     {
+      # dart binary built for the host. It does not use a snapshot
+      # and does not include Observatory.
+      'target_name': 'dart_bootstrap',
+      'type': 'executable',
+      'toolsets':['host'],
+      'dependencies': [
+        'libdart_withcore',
+        'libdart_builtin',
+        'libdart_io',
+        'generate_bootstrap_resources_cc_file#host',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'main.cc',
+        'builtin.cc',
+        'builtin_natives.cc',
+        'builtin.h',
+        'io_natives.h',
+        'vmservice.h',
+        'vmservice_impl.cc',
+        'vmservice_impl.h',
+        # Include generated source files.
+        '<(builtin_cc_file)',
+        '<(io_cc_file)',
+        '<(io_patch_cc_file)',
+        '<(bootstrap_resources_cc_file)',
+        'snapshot_empty.cc',
+      ],
+      'conditions': [
+        ['OS=="win"', {
+          'link_settings': {
+            'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
+          },
+          # Generate an import library on Windows, by exporting a function.
+          # Extensions use this import library to link to the API in dart.exe.
+          'msvs_settings': {
+            'VCLinkerTool': {
+              'AdditionalOptions': [ '/EXPORT:Dart_True' ],
+            },
+          },
+        }],
+      ],
+      'configurations': {
+        'Dart_Linux_Base': {
+          # Have the linker add all symbols to the dynamic symbol table
+          # so that extensions can look them up dynamically in the binary.
+          'ldflags': [
+            '-rdynamic',
+          ],
+        },
+      },
+    },
+    {
       # dart binary without any snapshot built in.
       'target_name': 'dart_no_snapshot',
       'type': 'executable',