Give Chrome Web Store app an icon in its manifest file.

chrome/browser/extensions/extension_icon_image.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/extension_icon_image.h"
 
 #include <vector>
 
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension.h"
@@ skipping 150 matching lines @@
   if (!extension_)
     return gfx::ImageSkiaRep();
 
   const float scale = ui::GetScaleFactorScale(scale_factor);
   const int resource_size_in_pixel =
       static_cast<int>(resource_size_in_dip_ * scale);
 
   ExtensionResource resource;
 
   // Find extension resource for non bundled component extensions.
-  if (!ImageLoadingTracker::IsSpecialBundledExtensionId(extension_->id())) {
-    // We try loading bigger image only if resource size is >= 32.
-    if (resource_size_in_pixel >= kMatchBiggerTreshold) {
-      resource = GetExtensionIconResource(extension_, icon_set_,
-          resource_size_in_pixel, ExtensionIconSet::MATCH_BIGGER);
-    }
+  // We try loading bigger image only if resource size is >= 32.
+  if (resource_size_in_pixel >= kMatchBiggerTreshold) {
+    resource = GetExtensionIconResource(extension_, icon_set_,
+        resource_size_in_pixel, ExtensionIconSet::MATCH_BIGGER);
+  }
 
-    // If resource is not found by now, try matching smaller one.
-    if (resource.empty()) {
-      resource = GetExtensionIconResource(extension_, icon_set_,
-          resource_size_in_pixel, ExtensionIconSet::MATCH_SMALLER);
-    }
+  // If resource is not found by now, try matching smaller one.
+  if (resource.empty()) {
+    resource = GetExtensionIconResource(extension_, icon_set_,
+        resource_size_in_pixel, ExtensionIconSet::MATCH_SMALLER);
+  }
 
-    // If there is no resource found, return default icon.
-    if (resource.empty())
-      return default_icon_.GetRepresentation(scale_factor);
-  }
+  // If there is no resource found, return default icon.
+  if (resource.empty())
+    return default_icon_.GetRepresentation(scale_factor);
 
   int id = tracker_.next_id();
   load_map_[id].scale_factor = scale_factor;
   load_map_[id].is_async = false;
 
   std::vector<ImageLoadingTracker::ImageRepresentation> info_list;
   info_list.push_back(ImageLoadingTracker::ImageRepresentation(
       resource,
       ImageLoadingTracker::ImageRepresentation::ALWAYS_RESIZE,
       gfx::Size(resource_size_in_dip_, resource_size_in_dip_).Scale(scale),
@@ skipping 52 matching lines @@
   DCHECK_EQ(type, chrome::NOTIFICATION_EXTENSION_UNLOADED);
 
   const Extension* extension =
       content::Details<extensions::UnloadedExtensionInfo>(details)->extension;
 
   if (extension_ == extension)
     extension_ = NULL;
 }
 
 }  // namespace extensions