[AppRemoting] Reduce usage of webkit prefix

remoting/webapp/base/html/main.css

Index: remoting/webapp/base/html/main.css
diff --git a/remoting/webapp/base/html/main.css b/remoting/webapp/base/html/main.css
index e4941eabda5ed82b4fd4e2d27a0c128588213ef0..0d2801a1de30b928fc7017614a6aeb77d774bde3 100644
--- a/remoting/webapp/base/html/main.css
+++ b/remoting/webapp/base/html/main.css
@@ -71,7 +71,7 @@ button {
   padding: 0 8px;
   line-height: 27px;
   border-radius:2px;
-  -webkit-transition: all 0.218s;
+  transition: all 0.218s;
   background-image: -webkit-gradient(linear, left top, left bottom,
                                      from(#f5f5f5), to(#f1f1f1));
   box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.1);
@@ -239,7 +239,7 @@ input[type=password] {
     border: 1px solid #d9d9d9;
     border-top: 1px solid #c0c0c0;
     vertical-align: top;
-    -webkit-border-radius: 1px;
+    border-radius: 1px;
 }
 input[type=text]:hover,
 input[type=password]:hover {
@@ -259,7 +259,7 @@ Component: Modal Dialog
 ------------------------------------------------------------------*/
 .kd-modaldialog:not([hidden]) {
   opacity: 1.0;
-  -webkit-transform: scale(1.0);
+  transform: scale(1.0);
 }
 
 .kd-modaldialog {
@@ -273,8 +273,8 @@ Component: Modal Dialog
   z-index: 100;
   opacity: 0.0;
   margin: auto;
-  -webkit-transform: scale(1.05);
-  -webkit-transition: all 0.218s;
+  transform: scale(1.05);
+  transition: all 0.218s;
 }
 
 h1.icon-label {
@@ -447,7 +447,7 @@ section {
 .information-box {
   background-color: #f9edbe;
   border: 1px solid #f0c36d;
-  -webkit-border-radius: 2px;
+  border-radius: 2px;
   box-shadow: 0px 2px 4px rgba(0,0,0,0.2);
   color: #222;
   padding: 8px 16px;