DevTools: [remote debugging] introduce json/new and json/close for creating and closing the tabs.

content/public/browser/devtools_http_handler_delegate.h

Index: content/public/browser/devtools_http_handler_delegate.h
diff --git a/content/public/browser/devtools_http_handler_delegate.h b/content/public/browser/devtools_http_handler_delegate.h
index 593c37cb52c83c3e9ab27231be4ad4abdb1cc53f..077b6139564718bd50ef94b203b7c5ab8c372b2d 100644
--- a/content/public/browser/devtools_http_handler_delegate.h
+++ b/content/public/browser/devtools_http_handler_delegate.h
@@ -14,7 +14,7 @@ class GURL;
 
 namespace content {
 
-class WebContents;
+class RenderViewHost;
 
 class DevToolsHttpHandlerDelegate {
  public:
@@ -33,6 +33,9 @@ class DevToolsHttpHandlerDelegate {
   // Get a thumbnail for a given page. Returns non-empty string iff we have the
   // thumbnail.
   virtual std::string GetPageThumbnailData(const GURL& url) = 0;
+
+  // Creates new inspectable target and returns its render view host.
+  virtual RenderViewHost* CreateNewTarget() = 0;
 };
 
 }  // namespace content