Define DevTools content API

content/public/browser/devtools/devtools_client_host.cc

Index: content/public/browser/devtools/devtools_client_host.cc
diff --git a/content/browser/debugger/devtools_client_host.cc b/content/public/browser/devtools/devtools_client_host.cc
similarity index 90%
rename from content/browser/debugger/devtools_client_host.cc
rename to content/public/browser/devtools/devtools_client_host.cc
index 3ff2c5496e3d2bac3b3369f78fb6a97dc27e41a2..e154c446eed085c373f01f4477aff12d844cf1dd 100644
--- a/content/browser/debugger/devtools_client_host.cc
+++ b/content/public/browser/devtools/devtools_client_host.cc
@@ -2,12 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "content/public/browser/devtools/devtools_client_host.h"
+
 #include <algorithm>
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
-#include "content/browser/debugger/devtools_client_host.h"
-#include "content/browser/debugger/devtools_manager.h"
+#include "content/public/browser/devtools/devtools_manager.h"
+
+namespace content {
 
 typedef std::vector<DevToolsClientHost*> DevToolsClientHostList;
 namespace {
@@ -53,3 +56,5 @@ void DevToolsClientHost::NotifyCloseListener() {
     close_listener_ = NULL;
   }
 }
+
+}  // namespace content