[inspector] Build inspector under v8_enable_inspector build flag.

src/inspector/public/V8InspectorClient.h

-// Copyright 2015 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.
-
-#ifndef V8_INSPECTOR_PUBLIC_V8INSPECTORCLIENT_H_
-#define V8_INSPECTOR_PUBLIC_V8INSPECTORCLIENT_H_
-
-#include "src/inspector/public/StringBuffer.h"
-#include "src/inspector/public/StringView.h"
-
-#include <v8.h>
-
-namespace v8_inspector {
-
-class V8StackTrace;
-
-enum class V8ConsoleAPIType { kClear, kDebug, kLog, kInfo, kWarning, kError };
-
-class PLATFORM_EXPORT V8InspectorClient {
- public:
-  virtual ~V8InspectorClient() {}
-
-  virtual void runMessageLoopOnPause(int contextGroupId) {}
-  virtual void quitMessageLoopOnPause() {}
-  virtual void runIfWaitingForDebugger(int contextGroupId) {}
-
-  virtual void muteMetrics(int contextGroupId) {}
-  virtual void unmuteMetrics(int contextGroupId) {}
-
-  virtual void beginUserGesture() {}
-  virtual void endUserGesture() {}
-
-  virtual std::unique_ptr<StringBuffer> valueSubtype(v8::Local<v8::Value>) {
-    return nullptr;
-  }
-  virtual bool formatAccessorsAsProperties(v8::Local<v8::Value>) {
-    return false;
-  }
-  virtual bool isInspectableHeapObject(v8::Local<v8::Object>) { return true; }
-
-  virtual v8::Local<v8::Context> ensureDefaultContextInGroup(
-      int contextGroupId) {
-    return v8::Local<v8::Context>();
-  }
-  virtual void beginEnsureAllContextsInGroup(int contextGroupId) {}
-  virtual void endEnsureAllContextsInGroup(int contextGroupId) {}
-
-  virtual void installAdditionalCommandLineAPI(v8::Local<v8::Context>,
-                                               v8::Local<v8::Object>) {}
-  virtual void consoleAPIMessage(int contextGroupId, V8ConsoleAPIType,
-                                 const StringView& message,
-                                 const StringView& url, unsigned lineNumber,
-                                 unsigned columnNumber, V8StackTrace*) {}
-  virtual v8::MaybeLocal<v8::Value> memoryInfo(v8::Isolate*,
-                                               v8::Local<v8::Context>) {
-    return v8::MaybeLocal<v8::Value>();
-  }
-
-  virtual void consoleTime(const StringView& title) {}
-  virtual void consoleTimeEnd(const StringView& title) {}
-  virtual void consoleTimeStamp(const StringView& title) {}
-  virtual double currentTimeMS() { return 0; }
-  typedef void (*TimerCallback)(void*);
-  virtual void startRepeatingTimer(double, TimerCallback, void* data) {}
-  virtual void cancelTimer(void* data) {}
-
-  // TODO(dgozman): this was added to support service worker shadow page. We
-  // should not connect at all.
-  virtual bool canExecuteScripts(int contextGroupId) { return true; }
-};
-
-}  // namespace v8_inspector
-
-#endif  // V8_INSPECTOR_PUBLIC_V8INSPECTORCLIENT_H_