gzip chrome://tracing resources.

content/browser/tracing/tracing_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 "content/browser/tracing/tracing_ui.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <set>
@@ skipping 222 matching lines @@
       base::Bind(&TracingUI::DoUpload, base::Unretained(this)));
   web_ui->RegisterMessageCallback(
       "doUploadBase64",
       base::Bind(&TracingUI::DoUploadBase64Encoded, base::Unretained(this)));
 
   // Set up the chrome://tracing/ source.
   BrowserContext* browser_context =
       web_ui->GetWebContents()->GetBrowserContext();
 
   WebUIDataSource* source = WebUIDataSource::Create(kChromeUITracingHost);
+  std::unordered_set<std::string> exclusions;
+  exclusions.insert("json/begin_recording");
+  exclusions.insert("json/categories");
+  exclusions.insert("json/end_recording_compressed");
+  exclusions.insert("json/get_buffer_percent_full");
+  exclusions.insert("json/get_buffer_status");
+  source->UseGzip(exclusions);
   source->SetJsonPath("strings.js");
   source->SetDefaultResource(IDR_TRACING_HTML);
   source->AddResourcePath("tracing.js", IDR_TRACING_JS);
   source->SetRequestFilter(base::Bind(OnTracingRequest));
   WebUIDataSource::Add(browser_context, source);
   TracingControllerImpl::GetInstance()->RegisterTracingUI(this);
 }
 
 TracingUI::~TracingUI() {
   TracingControllerImpl::GetInstance()->UnregisterTracingUI(this);
@@ skipping 72 matching lines @@
     web_ui()->CallJavascriptFunctionUnsafe("onUploadComplete",
                                            base::Value(feedback));
   } else {
     web_ui()->CallJavascriptFunctionUnsafe("onUploadError",
                                            base::Value(feedback));
   }
   trace_uploader_.reset();
 }
 
 }  // namespace content