Implement installation of the Chrome App Host.

chrome/installer/util/browser_distribution.h

Index: chrome/installer/util/browser_distribution.h
diff --git a/chrome/installer/util/browser_distribution.h b/chrome/installer/util/browser_distribution.h
index 7a78cc54826316c83526412087ae2a7e9cec01d6..e0dab73cee20f7296305fae40b3d94aacbce8231 100644
--- a/chrome/installer/util/browser_distribution.h
+++ b/chrome/installer/util/browser_distribution.h
@@ -30,6 +30,7 @@ class BrowserDistribution {
     CHROME_BROWSER,
     CHROME_FRAME,
     CHROME_BINARIES,
+    CHROME_APP_HOST,
     NUM_TYPES
   };
 
@@ -47,12 +48,6 @@ class BrowserDistribution {
                           // experiment but does not participate.
   };
 
-  // An array of the Types representing products;
-  static const Type kProductTypes[];
-
-  // The number of elements in the array |kProductTypes|.
-  static const size_t kNumProductTypes;
-
   virtual ~BrowserDistribution() {}
 
   static BrowserDistribution* GetDistribution();