[DevTools] Remove legacy code.

chrome/browser/devtools/devtools_window.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/devtools/devtools_window.h"
 
 #include <algorithm>
 
 #include "base/json/json_reader.h"
 #include "base/metrics/histogram.h"
@@ skipping 1094 matching lines @@
 }
 
 void DevToolsWindow::OnLoadCompleted() {
   // First seed inspected tab id for extension APIs.
   WebContents* inspected_web_contents = GetInspectedWebContents();
   if (inspected_web_contents) {
     SessionTabHelper* session_tab_helper =
         SessionTabHelper::FromWebContents(inspected_web_contents);
     if (session_tab_helper) {
       base::FundamentalValue tabId(session_tab_helper->session_id().id());
-      // TODO(dgozman): remove |WebInspector.setInspectedTabId| call in M45.
-      bindings_->CallClientFunction(
-          "(InspectorFrontendAPI.setInspectedTabId ||"
-              "WebInspector.setInspectedTabId)",
-          &tabId, NULL, NULL);
+      bindings_->CallClientFunction("InspectorFrontendAPI.setInspectedTabId",
+                                    &tabId, NULL, NULL);
     }
   }
 
   if (life_stage_ == kClosing)
     return;
 
   // We could be in kLoadCompleted state already if frontend reloads itself.
   if (life_stage_ != kLoadCompleted) {
     // Load is completed when both kIsDockedSet and kOnLoadFired happened.
     // Here we set kOnLoadFired.
@@ skipping 104 matching lines @@
       closure.Run();
     return;
   }
   load_completed_callback_ = closure;
 }
 
 bool DevToolsWindow::ForwardKeyboardEvent(
     const content::NativeWebKeyboardEvent& event) {
   return event_forwarder_->ForwardEvent(event);
 }