chrome://profiler: Only show memory metrics in when heap tracking is enabled.

chrome/browser/ui/webui/profiler_ui.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/ui/webui/profiler_ui.h"
 
 #include <string>
 
 // When testing the javacript code, it is cumbersome to have to keep
 // re-building the resouces package and reloading the browser. To solve
 // this, enable the following flag to read the webapp's source files
 // directly off disk, so all you have to do is refresh the page to
 // test the modifications.
 // #define USE_SOURCE_FILES_DIRECTLY
 
 #include "base/bind.h"
 #include "base/debug/debugging_flags.h"
+#include "base/debug/thread_heap_usage_tracker.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
 #include "base/tracked_objects.h"
 #include "base/values.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/task_profiler/task_profiler_data_serializer.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/browser_resources.h"
 #include "components/metrics/profiler/tracking_synchronizer.h"
@@ skipping 72 matching lines @@
 #else  // USE_SOURCE_FILES_DIRECTLY
 
 content::WebUIDataSource* CreateProfilerHTMLSource() {
   content::WebUIDataSource* source =
       content::WebUIDataSource::Create(chrome::kChromeUIProfilerHost);
 
   source->SetJsonPath("strings.js");
   source->AddResourcePath("profiler.js", IDR_PROFILER_JS);
   source->SetDefaultResource(IDR_PROFILER_HTML);
   source->UseGzip(std::unordered_set<std::string>());
-  source->AddBoolean("enableMemoryTaskProfiler",
-                     BUILDFLAG(ENABLE_MEMORY_TASK_PROFILER));
+  source->AddBoolean(
+      "enableMemoryTaskProfiler",
+      base::debug::ThreadHeapUsageTracker::IsHeapTrackingEnabled());
 
   return source;
 }
 
 #endif
 
 // This class receives javascript messages from the renderer.
 // Note that the WebUI infrastructure runs on the UI thread, therefore all of
 // this class's methods are expected to run on the UI thread.
 class ProfilerMessageHandler : public WebUIMessageHandler {
@@ skipping 53 matching lines @@
   // Serialize the data to JSON.
   base::DictionaryValue json_data;
   task_profiler::TaskProfilerDataSerializer::ToValue(
       process_data_phase, attributes.process_id, attributes.process_type,
       &json_data);
 
   // Send the data to the renderer.
   web_ui()->CallJavascriptFunctionUnsafe("g_browserBridge.receivedData",
                                          json_data);
 }