Change browser/page action default icon defined in manifest to support hidpi.

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 b96ba511863dbbe499539f52cfa1271fbab76e9a..bb54bf85a522fbec03705e44901f3d119cde6fcd 100644
--- a/chrome/common/extensions/extension_constants.cc
+++ b/chrome/common/extensions/extension_constants.cc
@@ -164,4 +164,20 @@ const int kExtensionIconSizes[] = {
 const size_t kNumExtensionIconSizes =
     arraysize(kExtensionIconSizes);
 
+const int kExtensionActionIconSizes[] = {
+  EXTENSION_ICON_ACTION,  // 19,
+  2 * EXTENSION_ICON_ACTION  // 38
+};
+
+const size_t kNumExtensionActionIconSizes =
+    arraysize(kExtensionActionIconSizes);
+
+const int kScriptBadgeIconSizes[] = {
+  EXTENSION_ICON_BITTY,  // 16
+  2 * EXTENSION_ICON_BITTY  // 32
+};
+
+const size_t kNumScriptBadgeIconSizes =
+    arraysize(kScriptBadgeIconSizes);
+
 }  // namespace extension_misc