Define DevTools content API

chrome/browser/extensions/extension_devtools_bridge.cc

Index: chrome/browser/extensions/extension_devtools_bridge.cc
diff --git a/chrome/browser/extensions/extension_devtools_bridge.cc b/chrome/browser/extensions/extension_devtools_bridge.cc
index 8bcc4522ee7531aba5426330069e14282496ad84..ef6987e7e3dea54a623b13136f3c6ab133bad62b 100644
--- a/chrome/browser/extensions/extension_devtools_bridge.cc
+++ b/chrome/browser/extensions/extension_devtools_bridge.cc
@@ -15,9 +15,14 @@
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
-#include "content/browser/debugger/devtools_manager.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/common/devtools_messages.h"
+#include "content/public/browser/devtools/devtools_agent_host_registry.h"
+#include "content/public/browser/devtools/devtools_manager.h"
+
+using content::DevToolsAgentHost;
+using content::DevToolsAgentHostRegistry;
+using content::DevToolsManager;
 
 ExtensionDevToolsBridge::ExtensionDevToolsBridge(int tab_id,
                                                  Profile* profile)
@@ -56,12 +61,12 @@ bool ExtensionDevToolsBridge::RegisterAsDevToolsClientHost() {
                                    &browser, &tab_strip,
                                    &contents, &tab_index)) {
     DevToolsManager* devtools_manager = DevToolsManager::GetInstance();
-    if (devtools_manager->GetDevToolsClientHostFor(contents->
-            render_view_host()) != NULL)
+    DevToolsAgentHost* agent = DevToolsAgentHostRegistry::GetDevToolsAgentHost(
+        contents->render_view_host());
+    if (devtools_manager->GetDevToolsClientHostFor(agent))
       return false;
 
-    devtools_manager->RegisterDevToolsClientHostFor(
-        contents->render_view_host(), this);
+    devtools_manager->RegisterDevToolsClientHostFor(agent, this);
 
     // Following messages depend on inspector protocol that is not yet
     // finalized.