DevTools: allow embedder handling remote debugger commands.

content/public/browser/devtools_manager_delegate.h

Index: content/public/browser/devtools_manager_delegate.h
diff --git a/content/public/browser/devtools_manager_delegate.h b/content/public/browser/devtools_manager_delegate.h
index 92b656d3ad68f79467d629757c3ab358b8178968..57579b13983a336a3c2dcb28190f87b105716cc6 100644
--- a/content/public/browser/devtools_manager_delegate.h
+++ b/content/public/browser/devtools_manager_delegate.h
@@ -5,6 +5,10 @@
 #ifndef CONTENT_PUBLIC_BROWSER_DEVTOOLS_MANAGER_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_DEVTOOLS_MANAGER_DELEGATE_H_
 
+namespace base {
+class DictionaryValue;
+}
+
 namespace content {
 
 class BrowserContext;
@@ -17,6 +21,11 @@ class DevToolsManagerDelegate {
   // Opens the inspector for |agent_host|.
   virtual void Inspect(BrowserContext* browser_context,
                        DevToolsAgentHost* agent_host) = 0;
+
+  // Result ownership is passed to the caller.
+  virtual base::DictionaryValue* HandleCommand(
+      DevToolsAgentHost* agent_host,
+      base::DictionaryValue* command) = 0;
 };
 
 }  // namespace content