NOT FOR LANDING: Thread the needle through all webmodules.

third_party/WebKit/Source/web/WebLocalFrameImpl.cpp

Index: third_party/WebKit/Source/web/WebLocalFrameImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebLocalFrameImpl.cpp b/third_party/WebKit/Source/web/WebLocalFrameImpl.cpp
index 5a917d88d3f8e6dc534087a051f26899c2a9f089..8ec518020c99f624dc0d2ceb26782b4c0b44d031 100644
--- a/third_party/WebKit/Source/web/WebLocalFrameImpl.cpp
+++ b/third_party/WebKit/Source/web/WebLocalFrameImpl.cpp
@@ -231,6 +231,8 @@
 #include "web/WebPluginContainerImpl.h"
 #include "web/WebRemoteFrameImpl.h"
 #include "web/WebViewImpl.h"
+#include "web/agent/sample/sample_agent.h"
+#include "web/api/frame.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/HashMap.h"
 #include "wtf/PtrUtil.h"
@@ -1927,6 +1929,13 @@ WebDevToolsAgent* WebLocalFrameImpl::devToolsAgent() {
   return m_devToolsAgent.get();
 }
 
+void WebLocalFrameImpl::startAgents() {
+  // TODO(dglazkov): Store all agents for the lifetime of this instance.
+  if (!frame())
+    return;
+  new web::SampleAgent(new web::Frame(frame()));
+}
+
 WebLocalFrameImpl* WebLocalFrameImpl::localRoot() {
   // This can't use the LocalFrame::localFrameRoot, since it may be called
   // when the WebLocalFrame exists but the core LocalFrame does not.