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

third_party/WebKit/Source/platform/v8_inspector/V8StackTraceImpl.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 V8StackTraceImpl_h
 #define V8StackTraceImpl_h
 
 #include "platform/inspector_protocol/InspectorProtocol.h"
 #include "platform/v8_inspector/protocol/Runtime.h"
 #include "platform/v8_inspector/public/V8StackTrace.h"
 
 #include <vector>
 
-namespace blink {
+namespace v8_inspector {
 
 class TracedValue;
 class V8Debugger;
 
+namespace protocol = blink::protocol;
+
 // Note: async stack trace may have empty top stack with non-empty tail to indicate
 // that current native-only state had some async story.
 // On the other hand, any non-top async stack is guaranteed to be non-empty.
 class V8StackTraceImpl final : public V8StackTrace {
     PROTOCOL_DISALLOW_COPY(V8StackTraceImpl);
 public:
     static const size_t maxCallStackSizeToCapture = 200;
 
     class Frame  {
     public:
@@ skipping 43 matching lines @@
 
 private:
     V8StackTraceImpl(int contextGroupId, const String16& description, std::vector<Frame>& frames, std::unique_ptr<V8StackTraceImpl> parent);
 
     int m_contextGroupId;
     String16 m_description;
     std::vector<Frame> m_frames;
     std::unique_ptr<V8StackTraceImpl> m_parent;
 };
 
-} // namespace blink
+} // namespace v8_inspector
 
 #endif // V8StackTraceImpl_h