Generalize ExtensionIconSet to store icon paths for custom size sets

chrome/common/extensions/extension_constants.cc

Index: chrome/common/extensions/extension_constants.cc
diff --git a/chrome/common/extensions/extension_constants.cc b/chrome/common/extensions/extension_constants.cc
index 0af3674c880fa5a71d8ad2632cb9397bcb462093..4a6e8c3d64381d7030788fa9a47d08fd288df942 100644
--- a/chrome/common/extensions/extension_constants.cc
+++ b/chrome/common/extensions/extension_constants.cc
@@ -10,6 +10,7 @@
 #include "base/command_line.h"
 #include "base/string_util.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/common/extensions/extension_icon_set.h"
 #include "chrome/common/net/url_util.h"
 
 namespace extension_urls {
@@ -145,4 +146,17 @@ const char kAppNotificationsIncognitoError[] =
     "This API is not accessible by 'split' mode "
     "extensions in incognito windows.";
 
+const int kExtensionIconSizes[] = {
+  ExtensionIconSet::EXTENSION_ICON_GIGANTOR,  // 512
+  ExtensionIconSet::EXTENSION_ICON_EXTRA_LARGE,  // 256
+  ExtensionIconSet::EXTENSION_ICON_LARGE,  // 128
+  ExtensionIconSet::EXTENSION_ICON_MEDIUM,  // 48
+  ExtensionIconSet::EXTENSION_ICON_SMALL,  // 32
+  ExtensionIconSet::EXTENSION_ICON_SMALLISH,  // 24
+  ExtensionIconSet::EXTENSION_ICON_BITTY  // 16
+};
+
+const size_t kNumExtensionIconSizes =
+    arraysize(kExtensionIconSizes);
+
 }  // namespace extension_misc