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// Copyright (c) 2006-2008 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.
// Contains code for handling "about:" URLs in the browser process.
#ifndef CHROME_BROWSER_BROWSER_ABOUT_HANDLER_H_
#define CHROME_BROWSER_BROWSER_ABOUT_HANDLER_H_
#pragma once
#include <map>
#include <string>
#include "base/process.h"
#include "base/singleton.h"
#include "base/string_util.h"
class GURL;
class Profile;
// Decides whether the given URL will be handled by the browser about handler
// and returns true if so. On true, it may also modify the given URL to be the
// final form (we fix up most "about:" URLs to be "chrome:" because WebKit
// handles all "about:" URLs as "about:blank.
//
// This is used by BrowserURLHandler.
bool WillHandleBrowserAboutURL(GURL* url, Profile* profile);
// We have a few magic commands that don't cause navigations, but rather pop up
// dialogs. This function handles those cases, and returns true if so. In this
// case, normal tab navigation should be skipped.
bool HandleNonNavigationAboutURL(const GURL& url);
#if defined(USE_TCMALLOC)
// A map of header strings (e.g. "Browser", "Renderer PID 123")
// to the tcmalloc output collected for each process.
typedef std::map<std::string, std::string> AboutTcmallocOutputsType;
class AboutTcmallocOutputs {
public:
AboutTcmallocOutputs() {}
AboutTcmallocOutputsType* outputs() { return &outputs_; }
// Records the output for a specified header string.
void SetOutput(std::string header, std::string output) {
outputs_[header] = output;
}
// Callback for output returned from renderer processes. Adds
// the output for a canonical renderer header string that
// incorporates the pid.
void RendererCallback(base::ProcessId pid, std::string output) {
SetOutput(StringPrintf("Renderer PID %d", static_cast<int>(pid)), output);
}
private:
AboutTcmallocOutputsType outputs_;
friend struct DefaultSingletonTraits<AboutTcmallocOutputs>;
DISALLOW_COPY_AND_ASSIGN(AboutTcmallocOutputs);
};
// Glue between the callback task and the method in the singleton.
void AboutTcmallocRendererCallback(base::ProcessId pid, std::string output);
#endif
#endif // CHROME_BROWSER_BROWSER_ABOUT_HANDLER_H_
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