DevTools: migrate DevTools APIs to use WebContents instead of RenderViewHost.

chrome/browser/task_manager/renderer_resource.cc

Index: chrome/browser/task_manager/renderer_resource.cc
diff --git a/chrome/browser/task_manager/renderer_resource.cc b/chrome/browser/task_manager/renderer_resource.cc
index ecf42b14d7cc8383ce81f37b1d580fc86aae5971..8539663c596b35d732e315fe82829af58c95c25f 100644
--- a/chrome/browser/task_manager/renderer_resource.cc
+++ b/chrome/browser/task_manager/renderer_resource.cc
@@ -99,14 +99,6 @@ bool RendererResource::ReportsV8MemoryStats() const {
   return true;
 }
 
-bool RendererResource::CanInspect() const {
-  return true;
-}
-
-void RendererResource::Inspect() const {
-  DevToolsWindow::OpenDevToolsWindow(render_view_host_);
-}
-
 bool RendererResource::SupportNetworkUsage() const {
   return true;
 }