Tracing: do not pass entire trace content in TraceDataEndpoint::ReceiveTraceFinalContents

content/browser/tracing/tracing_controller_browsertest.cc

 // Copyright 2013 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/public/browser/tracing_controller.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/files/file_util.h"
@@ skipping 53 matching lines @@
       base::Callback<void(std::unique_ptr<const base::DictionaryValue>,
                           base::RefCountedString*)> done_callback)
       : done_callback_(done_callback) {}
 
   void ReceiveTraceChunk(const std::string& chunk) override {
     EXPECT_FALSE(chunk.empty());
     trace_ += chunk;
   }
 
   void ReceiveTraceFinalContents(
-      std::unique_ptr<const base::DictionaryValue> metadata,
-      const std::string& contents) override {
-    EXPECT_EQ(trace_, contents);
-
-    std::string tmp = contents;
+      std::unique_ptr<const base::DictionaryValue> metadata) override {
     scoped_refptr<base::RefCountedString> chunk_ptr =
-        base::RefCountedString::TakeString(&tmp);
+        base::RefCountedString::TakeString(&trace_);
 
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         base::Bind(done_callback_, base::Passed(std::move(metadata)),
                    base::RetainedRef(chunk_ptr)));
   }
 
  protected:
   ~TracingControllerTestEndpoint() override {}
 
@@ skipping 348 matching lines @@
 
   TracingController* controller = TracingController::GetInstance();
   EXPECT_TRUE(controller->StartTracing(
       TraceConfig(),
       TracingController::StartTracingDoneCallback()));
   EXPECT_TRUE(controller->StopTracing(NULL));
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace content