Ensure there are always nice icons for bookmark apps.

chrome/browser/extensions/convert_web_app.cc

Index: chrome/browser/extensions/convert_web_app.cc
diff --git a/chrome/browser/extensions/convert_web_app.cc b/chrome/browser/extensions/convert_web_app.cc
index d6da449004a8880ebc7e4bfc5ec2623d36b4288c..04becdc5bc131a6311d3419d11a14cfb0dce5ed9 100644
--- a/chrome/browser/extensions/convert_web_app.cc
+++ b/chrome/browser/extensions/convert_web_app.cc
@@ -25,6 +25,7 @@
 #include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/file_util.h"
+#include "extensions/common/image_util.h"
 #include "extensions/common/manifest_constants.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/codec/png_codec.h"
@@ -106,6 +107,10 @@ scoped_refptr<Extension> ConvertWebAppToExtension(
   root->SetString(keys::kVersion, ConvertTimeToExtensionVersion(create_time));
   root->SetString(keys::kDescription, base::UTF16ToUTF8(web_app.description));
   root->SetString(keys::kLaunchWebURL, web_app.app_url.spec());
+  if (web_app.generated_icon_color != SK_ColorTRANSPARENT) {
+    root->SetString(keys::kAppIconColor, image_util::GenerateCSSColorString(
+                                             web_app.generated_icon_color));
+  }
 
   // Add the icons.
   base::DictionaryValue* icons = new base::DictionaryValue();