PDF: Tweak font-size and colors to more closely match other MD WebUI

chrome/browser/resources/pdf/elements/viewer-toolbar-dropdown/viewer-toolbar-dropdown.html

Index: chrome/browser/resources/pdf/elements/viewer-toolbar-dropdown/viewer-toolbar-dropdown.html
diff --git a/chrome/browser/resources/pdf/elements/viewer-toolbar-dropdown/viewer-toolbar-dropdown.html b/chrome/browser/resources/pdf/elements/viewer-toolbar-dropdown/viewer-toolbar-dropdown.html
index e759825c94b2ca55e843ebf627eabbdeb469fb41..42df39b6e35f8cc5e45c1e28b2e457a43d5d26b3 100644
--- a/chrome/browser/resources/pdf/elements/viewer-toolbar-dropdown/viewer-toolbar-dropdown.html
+++ b/chrome/browser/resources/pdf/elements/viewer-toolbar-dropdown/viewer-toolbar-dropdown.html
@@ -1,11 +1,9 @@
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/web-animations.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/paper-material/paper-material.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 
 <dom-module id="viewer-toolbar-dropdown">
-  <link rel="import" type="css" href="../shared-icon-style.css">
   <link rel="import" type="css" href="viewer-toolbar-dropdown.css">
   <template>
     <div on-click="toggleDropdown" id="icon">
@@ -16,12 +14,12 @@
     </div>
 
     <div id="container">
-      <paper-material id="dropdown" style="display: none">
+      <div id="dropdown" style="display: none">
         <h1>{{header}}</h1>
         <div id="scroll-container">
           <content></content>
         </div>
-      </paper-material>
+      </div>
     </div>
   </template>
 </dom-module>