Make the Material Design PDF Viewer's toolbar thinner

chrome/browser/resources/pdf/index-material.css

Index: chrome/browser/resources/pdf/index-material.css
diff --git a/chrome/browser/resources/pdf/index-material.css b/chrome/browser/resources/pdf/index-material.css
index 84779ef1819aaec41bd5e7d239c065a4425607f6..e9b12c62945cea1d6d5e53bdc128f0b9f521dbdb 100644
--- a/chrome/browser/resources/pdf/index-material.css
+++ b/chrome/browser/resources/pdf/index-material.css
@@ -19,8 +19,10 @@ body {
 core-toolbar {
   background-color: transparent;
   color: rgb(241, 241, 241);
-  font-size: 2em;
-  height: 64px;
+  font-size: 1.5em;
+  height: 56px;
+  padding-left: 1em;
+  padding-right: 1em;
   z-index: 3;
 }
 
@@ -31,7 +33,7 @@ core-toolbar {
 }
 
 #progress-bar {
-  height: 64px;
+  height: 56px;
   position: absolute;
   width: 100%;
   z-index: 3;
@@ -47,7 +49,7 @@ paper-progress::shadow #progressContainer {
 
 #plugin {
   position: fixed;
-  top: 64px;
+  top: 56px;
   z-index: 1;
 }