Move app list search result icon sizes to app_list_constants.

chrome/browser/ui/app_list/search/app_result.cc

Index: chrome/browser/ui/app_list/search/app_result.cc
diff --git a/chrome/browser/ui/app_list/search/app_result.cc b/chrome/browser/ui/app_list/search/app_result.cc
index 578f6f60987eefb99fb656aac8d078c432c31d16..f3a0b13c8d4e5fd2c5853872ec168839a240bad4 100644
--- a/chrome/browser/ui/app_list/search/app_result.cc
+++ b/chrome/browser/ui/app_list/search/app_result.cc
@@ -47,14 +47,13 @@ AppResult::AppResult(Profile* profile,
 
   is_platform_app_ = extension->is_platform_app();
 
-  icon_.reset(new extensions::IconImage(
-      profile_,
-      extension,
-      extensions::IconsInfo::GetIcons(extension),
-      display_type() == DISPLAY_TILE ? extension_misc::EXTENSION_ICON_MEDIUM
-                                     : extension_misc::EXTENSION_ICON_SMALL,
-      extensions::util::GetDefaultAppIcon(),
-      this));
+  icon_.reset(
+      new extensions::IconImage(profile_,
+                                extension,
+                                extensions::IconsInfo::GetIcons(extension),
+                                GetPreferredIconDimension(),
+                                extensions::util::GetDefaultAppIcon(),
+                                this));
   UpdateIcon();
 
   StartObservingExtensionRegistry();