base: Stop overloading ReadFileToString()

content/browser/webui/web_ui_mojo_browsertest.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 <limits>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 28 matching lines @@
 
 bool got_message = false;
 
 // The bindings for the page are generated from a .mojom file. This code looks
 // up the generated file from disk and returns it.
 bool GetResource(const std::string& id,
                  const WebUIDataSource::GotDataCallback& callback) {
   if (id.find(".mojom") != std::string::npos) {
     std::string contents;
     CHECK(base::ReadFileToString(mojo::test::GetFilePathForJSResource(id),
-                                 &contents, std::string::npos))
+                                 &contents))
         << id;
     base::RefCountedString* ref_contents = new base::RefCountedString;
     ref_contents->data() = contents;
     callback.Run(ref_contents);
     return true;
   }
 
   base::FilePath path;
   CHECK(base::PathService::Get(content::DIR_TEST_DATA, &path));
   path = path.AppendASCII(id.substr(0, id.find("?")));
   std::string contents;
-  CHECK(base::ReadFileToString(path, &contents, std::string::npos))
-      << path.value();
+  CHECK(base::ReadFileToString(path, &contents)) << path.value();
   base::RefCountedString* ref_contents = new base::RefCountedString;
   ref_contents->data() = contents;
   callback.Run(ref_contents);
   return true;
 }
 
 class BrowserTargetImpl : public BrowserTarget {
  public:
   BrowserTargetImpl(base::RunLoop* run_loop,
                     mojo::InterfaceRequest<BrowserTarget> request)
@@ skipping 168 matching lines @@
                 GURL("chrome://mojo-web-ui/web_ui_mojo_shell_test.html"));
 
   DOMMessageQueue message_queue;
   std::string message;
   ASSERT_TRUE(message_queue.WaitForMessage(&message));
   EXPECT_EQ("true", message);
 }
 
 }  // namespace
 }  // namespace content