Allow the user to "repair" a corrupted extension.

chrome/browser/resources/extensions/extensions.css

Index: chrome/browser/resources/extensions/extensions.css
diff --git a/chrome/browser/resources/extensions/extensions.css b/chrome/browser/resources/extensions/extensions.css
index c11083b7a451a044e4f93549c152013f0b833cd4..0ff782fed9c5c604bdc1162980a174d580f9bdaf 100644
--- a/chrome/browser/resources/extensions/extensions.css
+++ b/chrome/browser/resources/extensions/extensions.css
@@ -213,13 +213,18 @@ html[dir='rtl'] .extension-list-item {
   font-weight: 400;
 }
 
-.extension-description {
+.extension-description,
+.corrupt-install-message {
   -webkit-padding-end: 5px;
   font-size: 13px;
   margin: 5px 0;
   white-space: normal;
 }
 
+.corrupt-install-message {
+  color: rgb(196, 42, 23);
+}
+
 .action-links {
   -webkit-margin-after: 0.5em;
 }
@@ -250,7 +255,11 @@ html[dir='rtl'] .extension-list-item {
   position: relative;
 }
 
-.enable-checkbox-text {
+.enable-checkbox-text,
+/* We use x.link-button here so that we get higher specifity than the
+   link-button rules without resorting to the Dark Side (!IMPORTANT). */

[Dan Beam, 2014/09/18 21:36:49]

nit:

  /* Start each comment line with a star,
   * like this. */

[Devlin, 2014/09/19 21:30:08]

Done.

+.terminated-reload-link.link-button,
+.corrupted-repair-button.link-button {
   /* Matches width of trash. */
   -webkit-margin-end: 30px;
 }
@@ -274,8 +283,9 @@ html[dir='rtl'] .extension-list-item {
   word-wrap: break-word;
 }
 
-.terminated-reload-link {
-  -webkit-margin-end: 2.5em;
+.terminated-reload-link,
+.corrupted-repair-button {
+  display: inline-block;
   padding-top: 7px;
 }