[DevTools] Show LastModified and ResponseTime of ServiceWorker script in DevTools

Source/devtools/front_end/resources/serviceWorkersView.css

Index: Source/devtools/front_end/resources/serviceWorkersView.css
diff --git a/Source/devtools/front_end/resources/serviceWorkersView.css b/Source/devtools/front_end/resources/serviceWorkersView.css
index 3fefbd9b2a87c1ff9f3012399a39d15f939e8568..6ef9bead512e061fe23427c652fde9f877ff2504 100644
--- a/Source/devtools/front_end/resources/serviceWorkersView.css
+++ b/Source/devtools/front_end/resources/serviceWorkersView.css
@@ -187,10 +187,10 @@
     opacity: 0.8;
 }
 
-.service-workers-error-icon {
+.service-workers-error-icon,

[dgozman, 2015/03/30 12:54:23]

Instead of these styles, just use custom element "dt-icon-label" and set it's
type. See smallIcon.css for available types.

[horo, 2015/03/30 15:05:40]

Done.

+.service-workers-info-icon {
     background-image: url(Images/statusbarButtonGlyphs.png);
     background-size: 320px 144px;
-    background-position: -213px -96px;
     height: 10px;
     width: 10px;
     border: 0;
@@ -200,11 +200,21 @@
 }
 
 @media (-webkit-min-device-pixel-ratio: 1.5) {
-.service-workers-error-icon {
+.service-workers-error-icon,
+.service-workers-info-icon {
     background-image: url(Images/statusbarButtonGlyphs_2x.png);
 }
 } /* media */
 
+
+.service-workers-error-icon {
+    background-position: -213px -96px;
+}
+
+.service-workers-info-icon {
+    background-position: -213px -107px;
+}
+
 .service-workers-error {
     display: flex;
 }
@@ -213,6 +223,10 @@
     font-weight: bold;
 }
 
+.service-workers-info {
+    display: flex;
+}
+
 .service-workers-color-0 {
     background-color: #003366;
 }