Deprecate Extensions.InjectScriptTime histogram

extensions/renderer/script_injection.cc

 // Copyright 2014 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 "extensions/renderer/script_injection.h"
 
 #include <map>
 #include <utility>
 
 #include "base/lazy_instance.h"
@@ skipping 298 matching lines @@
           option = blink::WebLocalFrame::Synchronous;
           break;
       }
     } else {
       option = blink::WebLocalFrame::Synchronous;
     }
     web_frame->requestExecuteScriptInIsolatedWorld(
         world_id, &sources.front(), sources.size(), is_user_gesture, option,
         callback.release());
   }
-
-  if (injection_host_->id().type() == HostID::EXTENSIONS)
-    UMA_HISTOGRAM_TIMES("Extensions.InjectScriptTime", exec_timer.Elapsed());
 }
 
 void ScriptInjection::OnJsInjectionCompleted(
     const std::vector<v8::Local<v8::Value>>& results,
     base::TimeDelta elapsed) {
   DCHECK(!did_inject_js_);
 
   if (injection_host_->id().type() == HostID::EXTENSIONS)
     UMA_HISTOGRAM_TIMES("Extensions.InjectedScriptExecutionTime", elapsed);
 
@@ skipping 30 matching lines @@
 void ScriptInjection::InjectCss(std::set<std::string>* injected_stylesheets,
                                 size_t* num_injected_stylesheets) {
   std::vector<blink::WebString> css_sources = injector_->GetCssSources(
       run_location_, injected_stylesheets, num_injected_stylesheets);
   blink::WebLocalFrame* web_frame = render_frame_->GetWebFrame();
   for (const blink::WebString& css : css_sources)
     web_frame->document().insertStyleSheet(css);
 }
 
 }  // namespace extensions