[inspector] Merge InspectorClientImpl into IsolateData

test/inspector/inspector.gyp

 # Copyright 2016 the V8 project 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': {
     'v8_code': 1,
   },
   'includes': ['../../gypfiles/toolchain.gypi', '../../gypfiles/features.gypi'],
   'targets': [
     {
       'target_name': 'inspector-test',
       'type': 'executable',
       'dependencies': [
         '../../src/v8.gyp:v8_libplatform',
         '../../src/v8.gyp:v8_libbase',
         '../../src/v8.gyp:v8',
       ],
       'include_dirs': [
         '../..',
       ],
       'sources': [
-        'inspector-impl.cc',
-        'inspector-impl.h',
         'inspector-test.cc',
         'isolate-data.cc',
         'isolate-data.h',
         'task-runner.cc',
         'task-runner.h',
       ],
       'conditions': [
         ['v8_enable_i18n_support==1', {
           'dependencies': [
             '<(icu_gyp_path):icui18n',
@@ skipping 16 matching lines @@
             '../../gypfiles/isolate.gypi',
           ],
           'sources': [
             'inspector.isolate',
           ],
         },
       ],
     }],
   ],
 }