(re-commit) Implement installation of the Chrome App Host.

chrome/installer/util/util_constants.h

Index: chrome/installer/util/util_constants.h
diff --git a/chrome/installer/util/util_constants.h b/chrome/installer/util/util_constants.h
index c4d1af51342091a8a292e399ef4ca08607761f01..9a1da328b0b31bf8e024ad4d64edc917d8eff6e1 100644
--- a/chrome/installer/util/util_constants.h
+++ b/chrome/installer/util/util_constants.h
@@ -124,6 +124,7 @@ COMPILE_ASSERT(CREATING_VISUAL_MANIFEST == 17,
 namespace switches {
 extern const char kAutoLaunchChrome[];
 extern const char kChrome[];
+extern const char kChromeAppHost[];
 extern const char kChromeFrame[];
 extern const char kChromeFrameQuickEnable[];
 extern const char kChromeFrameReadyMode[];
@@ -166,6 +167,7 @@ extern const char kExperimentGroup[];
 extern const char kToastResultsKey[];
 }  // namespace switches
 
+extern const wchar_t kChromeAppHostExe[];
 extern const wchar_t kChromeDll[];
 extern const wchar_t kChromeExe[];
 extern const wchar_t kChromeFrameDll[];
@@ -175,6 +177,8 @@ extern const wchar_t kChromeFrameReadyModeField[];
 extern const wchar_t kChromeLauncherExe[];
 extern const wchar_t kChromeOldExe[];
 extern const wchar_t kChromeNewExe[];
+extern const wchar_t kCmdInstallApp[];
+extern const wchar_t kCmdQuickEnableApplicationHost[];
 extern const wchar_t kCmdQuickEnableCf[];
 extern const wchar_t kDelegateExecuteExe[];
 extern const wchar_t kGoogleChromeInstallSubDir1[];