Add unittests target to the binary distribution (issue #1632)

- Move all tests from the top-level directory to tests/.
- Move files shared by cefclient and unittests to tests/shared/.
- Add a fused (single header/source file) version of gtest in
  tests/gtest/ with associated CMake configuration.
- Test-only headers are now exposed in include/test/. Unit test
  targets must define UNIT_TEST in order to access them.
- Replace usage of USING_CEF_SHARED with WRAPPING_CEF_SHARED for
  clarity (only the libcef_dll_wrapper target should define it).
- Remove the RENAME_DIRECTORY CMake macro which is no longer used.
- Remove C++11 usage from unittests sources for compatibility with
  the binary distribution configuration.
- Windows: Fix build errors due to chrome_elf.dll and imm32.lib
  missing from the CMake configuration.

tests/shared/browser/client_app_browser.h

@@ -0,0 +1,82 @@
+// Copyright (c) 2013 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+
+#ifndef CEF_TESTS_SHARED_BROWSER_CLIENT_APP_BROWSER_H_
+#define CEF_TESTS_SHARED_BROWSER_CLIENT_APP_BROWSER_H_
+#pragma once
+
+#include <set>
+
+#include "tests/shared/common/client_app.h"
+
+namespace client {
+
+// Client app implementation for the browser process.
+class ClientAppBrowser : public ClientApp,
+                         public CefBrowserProcessHandler {
+ public:
+  // Interface for browser delegates. All Delegates must be returned via
+  // CreateDelegates. Do not perform work in the Delegate
+  // constructor. See CefBrowserProcessHandler for documentation.
+  class Delegate : public virtual CefBase {
+   public:
+    virtual void OnBeforeCommandLineProcessing(
+        CefRefPtr<ClientAppBrowser> app,
+        CefRefPtr<CefCommandLine> command_line) {}
+
+    virtual void OnContextInitialized(CefRefPtr<ClientAppBrowser> app) {}
+
+    virtual void OnBeforeChildProcessLaunch(
+        CefRefPtr<ClientAppBrowser> app,
+        CefRefPtr<CefCommandLine> command_line) {}
+
+    virtual void OnRenderProcessThreadCreated(
+        CefRefPtr<ClientAppBrowser> app,
+        CefRefPtr<CefListValue> extra_info) {}
+  };
+
+  typedef std::set<CefRefPtr<Delegate> > DelegateSet;
+
+  ClientAppBrowser();
+
+ private:
+  // Creates all of the Delegate objects. Implemented by cefclient in
+  // client_app_delegates_browser.cc
+  static void CreateDelegates(DelegateSet& delegates);
+
+  // Create the Linux print handler. Implemented by cefclient in
+  // client_app_delegates_browser.cc
+  static CefRefPtr<CefPrintHandler> CreatePrintHandler();
+
+  // CefApp methods.
+  void OnBeforeCommandLineProcessing(
+      const CefString& process_type,
+      CefRefPtr<CefCommandLine> command_line) OVERRIDE;
+  CefRefPtr<CefBrowserProcessHandler> GetBrowserProcessHandler() OVERRIDE {
+    return this;
+  }
+
+  // CefBrowserProcessHandler methods.
+  void OnContextInitialized() OVERRIDE;
+  void OnBeforeChildProcessLaunch(
+      CefRefPtr<CefCommandLine> command_line) OVERRIDE;
+  void OnRenderProcessThreadCreated(
+      CefRefPtr<CefListValue> extra_info) OVERRIDE;
+  CefRefPtr<CefPrintHandler> GetPrintHandler() OVERRIDE {
+    return print_handler_;
+  }
+  void OnScheduleMessagePumpWork(int64 delay) OVERRIDE;
+
+  // Set of supported Delegates.
+  DelegateSet delegates_;
+
+  CefRefPtr<CefPrintHandler> print_handler_;
+
+  IMPLEMENT_REFCOUNTING(ClientAppBrowser);
+  DISALLOW_COPY_AND_ASSIGN(ClientAppBrowser);
+};
+
+}  // namespace client
+
+#endif  // CEF_TESTS_SHARED_BROWSER_CLIENT_APP_BROWSER_H_