Implement the persistent metro mode setting (win8)

chrome/common/chrome_constants.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 "chrome/common/chrome_constants.h"
 
 #include "base/file_path.h"
 
 #define FPL FILE_PATH_LITERAL
 
 #if defined(OS_MACOSX)
 #define CHROMIUM_PRODUCT_STRING "Chromium"
 #if defined(GOOGLE_CHROME_BUILD)
 #define PRODUCT_STRING "Google Chrome"
 #elif defined(CHROMIUM_BUILD)
 #define PRODUCT_STRING "Chromium"
 #else
 #error Unknown branding
 #endif
-#endif  // OS_MACOSX
+#endif  // defined(OS_MACOSX)
+
+#if defined(OS_WIN)
+#if defined(GOOGLE_CHROME_BUILD)
+#define PRODUCT_STRING_PATH L"Google\\Chrome"
+#elif defined(CHROMIUM_BUILD)
+#define PRODUCT_STRING_PATH L"Chromium"
+#else
+#error Unknown branding
+#endif
+#endif  // defined(OS_WIN)
 
 namespace chrome {
 
 const char kChromeVersionEnvVar[] = "CHROME_VERSION";
 
 // The following should not be used for UI strings; they are meant
 // for system strings only. UI changes should be made in the GRD.
 //
 // There are four constants used to locate the executable name and path:
 //
@@ skipping 167 matching lines @@
 const float kMaxShareOfExtensionProcesses = 0.30f;
 
 #if defined(OS_LINUX)
 extern const int kLowestRendererOomScore = 300;
 extern const int kHighestRendererOomScore = 1000;
 #endif
 
 #if defined(OS_WIN)
 // This is used by the PreRead experiment.
 const char kPreReadEnvironmentVariable[] = "CHROME_PRE_READ_EXPERIMENT";
+// This is used by chrome in Windows 8 metro mode.
 const wchar_t kMetroChromeUserDataSubDir[] = L"Metro";
 const wchar_t kMetroNavigationAndSearchMessage[] =
     L"CHROME_METRO_NAV_SEARCH_REQUEST";
 const wchar_t kMetroGetCurrentTabInfoMessage[] =
     L"CHROME_METRO_GET_CURRENT_TAB_INFO";
+const wchar_t kMetroRegistryPath[] =
+    L"Software\\" PRODUCT_STRING_PATH L"\\Metro";
+const wchar_t kLaunchModeValue[] = L"launch_mode";
 #endif
 
 }  // namespace chrome
 
 #undef FPL