Move ReadFileToString to the base namespace.

content/browser/tracing/trace_subscriber_stdio_unittest.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/trace_subscriber_stdio.h"
 
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 17 matching lines @@
         make_scoped_refptr(base::RefCountedString::TakeString(&foo)));
 
     std::string bar("bar");
     subscriber.OnTraceDataCollected(
         make_scoped_refptr(base::RefCountedString::TakeString(&bar)));
 
     subscriber.OnEndTracingComplete();
   }
   BrowserThread::GetBlockingPool()->FlushForTesting();
   std::string result;
-  EXPECT_TRUE(file_util::ReadFileToString(trace_file, &result));
+  EXPECT_TRUE(base::ReadFileToString(trace_file, &result));
   EXPECT_EQ("[foo,bar]", result);
 }
 
 TEST_F(TraceSubscriberStdioTest, CanWritePropertyList) {
   base::ScopedTempDir trace_dir;
   ASSERT_TRUE(trace_dir.CreateUniqueTempDir());
   base::FilePath trace_file(trace_dir.path().AppendASCII("trace.txt"));
   {
     TraceSubscriberStdio subscriber(
         trace_file,
         TraceSubscriberStdio::FILE_TYPE_PROPERTY_LIST,
         false);
 
     std::string foo("foo");
     subscriber.OnTraceDataCollected(
         make_scoped_refptr(base::RefCountedString::TakeString(&foo)));
 
     std::string bar("bar");
     subscriber.OnTraceDataCollected(
         make_scoped_refptr(base::RefCountedString::TakeString(&bar)));
 
     subscriber.OnEndTracingComplete();
   }
   BrowserThread::GetBlockingPool()->FlushForTesting();
   std::string result;
-  EXPECT_TRUE(file_util::ReadFileToString(trace_file, &result));
+  EXPECT_TRUE(base::ReadFileToString(trace_file, &result));
   EXPECT_EQ("{\"traceEvents\":[foo,bar]}", result);
 }
 
 TEST_F(TraceSubscriberStdioTest, CanWriteSystemDataFirst) {
   base::ScopedTempDir trace_dir;
   ASSERT_TRUE(trace_dir.CreateUniqueTempDir());
   base::FilePath trace_file(trace_dir.path().AppendASCII("trace.txt"));
   {
     TraceSubscriberStdio subscriber(
         trace_file,
         TraceSubscriberStdio::FILE_TYPE_PROPERTY_LIST,
         true);
 
     std::string foo("foo");
     subscriber.OnTraceDataCollected(
         make_scoped_refptr(base::RefCountedString::TakeString(&foo)));
 
     std::string bar("bar");
     subscriber.OnTraceDataCollected(
         make_scoped_refptr(base::RefCountedString::TakeString(&bar)));
 
     std::string systemTrace("event1\nev\"ent\"2\n");
     subscriber.OnEndSystemTracing(
         make_scoped_refptr(base::RefCountedString::TakeString(&systemTrace)));
     subscriber.OnEndTracingComplete();
   }
   BrowserThread::GetBlockingPool()->FlushForTesting();
   std::string result;
-  EXPECT_TRUE(file_util::ReadFileToString(trace_file, &result));
+  EXPECT_TRUE(base::ReadFileToString(trace_file, &result));
   EXPECT_EQ(
     "{\"traceEvents\":[foo,bar],\""
     "systemTraceEvents\":\"event1\\nev\\\"ent\\\"2\\n\"}",
     result);
 }
 
 TEST_F(TraceSubscriberStdioTest, CanWriteSystemDataLast) {
   base::ScopedTempDir trace_dir;
   ASSERT_TRUE(trace_dir.CreateUniqueTempDir());
   base::FilePath trace_file(trace_dir.path().AppendASCII("trace.txt"));
@@ skipping 11 matching lines @@
     subscriber.OnTraceDataCollected(
         make_scoped_refptr(base::RefCountedString::TakeString(&bar)));
 
     std::string systemTrace("event1\nev\"ent\"2\n");
     subscriber.OnEndTracingComplete();
     subscriber.OnEndSystemTracing(
         make_scoped_refptr(base::RefCountedString::TakeString(&systemTrace)));
   }
   BrowserThread::GetBlockingPool()->FlushForTesting();
   std::string result;
-  EXPECT_TRUE(file_util::ReadFileToString(trace_file, &result));
+  EXPECT_TRUE(base::ReadFileToString(trace_file, &result));
   EXPECT_EQ(
     "{\"traceEvents\":[foo,bar],\""
     "systemTraceEvents\":\"event1\\nev\\\"ent\\\"2\\n\"}",
     result);
 }
 
 }  // namespace content