[DevTools] Schema domain implementation.

third_party/WebKit/Source/platform/blink_platform.gypi

 {
   'includes': [
     'platform_generated.gypi',
   ],
   'variables': {
     'platform_files': [
       'AsyncFileSystemCallbacks.h',
       'CalculationValue.h',
       'CheckedInt.h',
       'ContentDecryptionModuleResult.h',
@@ skipping 1146 matching lines @@
       'v8_inspector/V8HeapProfilerAgentImpl.cpp',
       'v8_inspector/V8HeapProfilerAgentImpl.h',
       'v8_inspector/V8Console.cpp',
       'v8_inspector/V8Console.h',
       'v8_inspector/V8InjectedScriptHost.cpp',
       'v8_inspector/V8InjectedScriptHost.h',
       'v8_inspector/V8InspectorSessionImpl.cpp',
       'v8_inspector/V8InspectorSessionImpl.h',
       'v8_inspector/V8InternalValueType.cpp',
       'v8_inspector/V8InternalValueType.h',
+      'v8_inspector/V8MetaAgentImpl.cpp',
+      'v8_inspector/V8MetaAgentImpl.h',
       'v8_inspector/V8ProfilerAgentImpl.cpp',
       'v8_inspector/V8ProfilerAgentImpl.h',
       'v8_inspector/V8Regex.cpp',
       'v8_inspector/V8Regex.h',
       'v8_inspector/V8RuntimeAgentImpl.cpp',
       'v8_inspector/V8RuntimeAgentImpl.h',
       'v8_inspector/V8StackTraceImpl.cpp',
       'v8_inspector/V8StackTraceImpl.h',
       'v8_inspector/V8StringUtil.cpp',
       'v8_inspector/V8StringUtil.h',
@@ skipping 266 matching lines @@
       ['use_default_render_theme==1',
         {
           'platform_test_files': [
             'scroll/ScrollbarThemeAuraTest.cpp',
           ],
         }
       ],
     ],
   },
 }