Add crash keys for the installer covering simple InstallerState fields.

chrome/installer/util/installer_state.h

Index: chrome/installer/util/installer_state.h
diff --git a/chrome/installer/util/installer_state.h b/chrome/installer/util/installer_state.h
index bb24391975242439caa5b9779d5c9695526b0a43..d121eeff2c32bf8edd460ba25bb521bba8061ab5 100644
--- a/chrome/installer/util/installer_state.h
+++ b/chrome/installer/util/installer_state.h
@@ -107,11 +107,9 @@ class InstallerState {
   Operation operation() const { return operation_; }
 
   // A convenience method returning level() == SYSTEM_LEVEL.
-  // TODO(grt): Eradicate the bool in favor of the enum.
   bool system_install() const;
 
   // A convenience method returning package_type() == MULTI_PACKAGE.
-  // TODO(grt): Eradicate the bool in favor of the enum.
   bool is_multi_install() const;
 
   // The full path to the place where the operand resides.