Move crash keys for command-line switches to components/crash so they can be set

chrome/installer/setup/installer_crash_reporting.h

Index: chrome/installer/setup/installer_crash_reporting.h
diff --git a/chrome/installer/setup/installer_crash_reporting.h b/chrome/installer/setup/installer_crash_reporting.h
index 4ce1baee54b87894791b9494ade2b0c11c97dd17..386d264fc7da48162e248d2f50d5c30fe420940d 100644
--- a/chrome/installer/setup/installer_crash_reporting.h
+++ b/chrome/installer/setup/installer_crash_reporting.h
@@ -9,6 +9,10 @@
 
 #include "base/debug/crash_logging.h"
 
+namespace base {
+class CommandLine;
+}  // namespace base
+
 namespace installer {
 
 class InstallerState;
@@ -24,6 +28,9 @@ size_t RegisterCrashKeys();
 // once.
 void SetInitialCrashKeys(const InstallerState& installer_state);
 
+// Sets crash keys for the switches given in |command_line|.
+void SetCrashKeysFromCommandLine(const base::CommandLine& command_line);
+
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_SETUP_INSTALLER_CRASH_REPORTING_H_