Add custom icon support to GlobalError. Show extension icon in permissions increase bubble.

chrome/browser/signin/signin_global_error.cc

Index: chrome/browser/signin/signin_global_error.cc
diff --git a/chrome/browser/signin/signin_global_error.cc b/chrome/browser/signin/signin_global_error.cc
index 4418ebabf0882d67ddebefda6a4a15d087a32843..9b4786af2b77d1dddac6c5851042a226291c9e44 100644
--- a/chrome/browser/signin/signin_global_error.cc
+++ b/chrome/browser/signin/signin_global_error.cc
@@ -16,7 +16,10 @@
 #include "chrome/common/url_constants.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
+#include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/image/image.h"
 
 SigninGlobalError::SigninGlobalError(SigninManagerBase* manager,
                                      Profile* profile)
@@ -122,6 +125,11 @@ bool SigninGlobalError::HasBubbleView() {
   return !GetBubbleViewMessages().empty();
 }
 
+gfx::Image SigninGlobalError::GetBubbleViewIcon() {
+  return ResourceBundle::GetSharedInstance().GetNativeImageNamed(
+      IDR_INPUT_ALERT);
+}
+
 string16 SigninGlobalError::GetBubbleViewTitle() {
   return l10n_util::GetStringUTF16(IDS_SIGNIN_ERROR_BUBBLE_VIEW_TITLE);
 }