[DevTools] Move platform/v8_inspector classes under v8_inspector namespace.

third_party/WebKit/Source/platform/v8_inspector/V8StringUtil.h

 // Copyright 2016 The Chromium 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 V8StringUtil_h
 #define V8StringUtil_h
 
 #include "platform/inspector_protocol/InspectorProtocol.h"
 #include "platform/v8_inspector/protocol/Debugger.h"
 #include <v8.h>
 
-namespace blink {
+namespace v8_inspector {
 
 class V8InspectorSession;
 
+namespace protocol = blink::protocol;
+
 std::unique_ptr<protocol::Value> toProtocolValue(v8::Local<v8::Context>, v8::Local<v8::Value>, int maxDepth = protocol::Value::maxDepth);
 
 v8::Local<v8::String> toV8String(v8::Isolate*, const String16&);
 v8::Local<v8::String> toV8StringInternalized(v8::Isolate*, const String16&);
 v8::Local<v8::String> toV8StringInternalized(v8::Isolate*, const char*);
 
 String16 toProtocolString(v8::Local<v8::String>);
 String16 toProtocolStringWithTypeCheck(v8::Local<v8::Value>);
 
 String16 findSourceURL(const String16& content, bool multiline);
 String16 findSourceMapURL(const String16& content, bool multiline);
 std::vector<std::unique_ptr<protocol::Debugger::SearchMatch>> searchInTextByLinesImpl(V8InspectorSession*, const String16& text, const String16& query, bool caseSensitive, bool isRegex);
 
-} //  namespace blink
+} //  namespace v8_inspector
 
 
 #endif // !defined(V8StringUtil_h)