[DevTools] Remove WebDevToolsAgent::setLayerTreeId calls.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 436193200f65298d91169fb5b4fa87a3aed4719f..eb9971320db4aaff0a97e71a2efcc757be981ee0 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -134,7 +134,6 @@
 #include "third_party/WebKit/public/web/WebDataSource.h"
 #include "third_party/WebKit/public/web/WebDateTimeChooserCompletion.h"
 #include "third_party/WebKit/public/web/WebDateTimeChooserParams.h"
-#include "third_party/WebKit/public/web/WebDevToolsAgent.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebElement.h"
 #include "third_party/WebKit/public/web/WebFileChooserParams.h"
@@ -402,12 +401,6 @@ static void ConvertToFaviconSizes(
     sizes->push_back(gfx::Size(web_sizes[i]));
 }
 
-static blink::WebDevToolsAgent* GetWebDevToolsAgent(WebView* webview) {
-  if (!webview || !webview->mainFrame()->isWebLocalFrame())
-    return nullptr;
-  return webview->mainFrame()->toWebLocalFrame()->devToolsAgent();
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 
 struct RenderViewImpl::PendingFileChooser {
@@ -803,12 +796,6 @@ void RenderViewImpl::Initialize(const ViewMsg_New_Params& params,
   new TextInputClientObserver(this);
 #endif  // defined(OS_MACOSX)
 
-  // TODO(dgozman): do this not for main frame, but for local frame roots.
-  if (blink::WebDevToolsAgent* devToolsAgent = GetWebDevToolsAgent(webview())) {
-    if (RenderWidgetCompositor* rwc = compositor())
-      devToolsAgent->setLayerTreeId(rwc->GetLayerTreeId());
-  }
-
   // The next group of objects all implement RenderViewObserver, so are deleted
   // along with the RenderView automatically.
   mouse_lock_dispatcher_ = new RenderViewMouseLockDispatcher(this);
@@ -2048,9 +2035,6 @@ void RenderViewImpl::initializeLayerTreeView() {
   RenderWidgetCompositor* rwc = compositor();
   if (!rwc)
     return;
-  // TODO(dgozman): do this not for main frame, but for local frame roots.
-  if (blink::WebDevToolsAgent* devToolsAgent = GetWebDevToolsAgent(webview()))
-    devToolsAgent->setLayerTreeId(rwc->GetLayerTreeId());
 
   bool use_threaded_event_handling = true;
 #if defined(OS_MACOSX) && !defined(OS_IOS)