PDF Viewer update: Change sidenav icon.

Fixed: 1123225
Change-Id: Ied7432e2dfede4f126da879ce139e7cc9e883ca1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2384910
Auto-Submit: dpapad <dpapad@chromium.org>
Commit-Queue: John Lee <johntlee@chromium.org>
Reviewed-by: John Lee <johntlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#803147}

chrome/browser/resources/pdf/elements/icons.html

@@ -17,7 +17,6 @@
       <g id="fullscreen-exit"><path d="M5 16h3v3h2v-5H5v2zm3-8H5v2h5V5H8v3zm6 11h2v-3h3v-2h-5v5zm2-11V5h-2v5h5V8h-3z"></path></g>
       <g id="highlighter"><path d="M10.22,9.49 L4.31,15.49 C3.54,16.29 3.61,17.54 4.39,18.34 L0.77,22 L6.45,22 L7.19,21.25 C7.97,22.06 9.14,22.11 9.92,21.3 L15.88,15.25 L10.22,9.49 L10.22,9.49 Z"></path><path style="fill: var(--pen-tip-fill)"  d="M22.68,5.49 L19.86,2.62 C19.08,1.82 17.79,1.78 17.02,2.58 L11.27,8.43 L16.93,14.18 L22.62,8.4 C23.39,7.59 23.45,6.29 22.68,5.49 L22.68,5.49 Z"></path><path style="fill: var(--pen-tip-border)" d="M18.4,3c0.3,0,0.5,0.1,0.7,0.3L22,6.2c0.4,0.4,0.4,1.1-0.1,1.5l-5,5.1l-4.3-4.3l5.1-5.2 C17.9,3.1,18.1,3,18.4,3 M18.4,2c-0.5,0-1,0.2-1.4,0.6l-5.8,5.9l5.7,5.8l5.7-5.8c0.8-0.8,0.8-2.1,0.1-2.9l-2.8-2.9 C19.5,2.2,18.9,2,18.4,2L18.4,2z"></path></g>
       <g id="marker"><polygon points="3 17.25 3 21 6.74 21 14.28 13.47 10.53 9.72"></polygon><path style="fill: var(--pen-tip-fill)" d="M18.37,3.3 L20.71,5.63 C21.1,6.02 21.11,6.66 20.72,7.05 L15.35,12.41 L11.59,8.65 L14.12,6.12 L13.39,5.39 L7.73,11.05 L6.33,9.65 L12.7,3.29 C13.09,2.9 13.74,2.91 14.12,3.3 L15.54,4.71 L16.96,3.3 C17.34,2.91 17.98,2.91 18.37,3.3 L18.37,3.3 Z"></path><path style="fill: var(--pen-tip-border)" d="M17.7,4L20,6.3L15.4,11L13,8.6l1.8-1.8l0.7-0.7l-0.7-0.7l-0.2-0.2l0.2,0.2l0.7,0.7l0.7-0.7L17.7,4 M13.4,3 c-0.3,0-0.5,0.1-0.7,0.3L6.3,9.6l1.4,1.4l5.7-5.7l0.7,0.7l-2.5,2.5l3.8,3.8L20.7,7c0.4-0.4,0.4-1,0-1.4l-2.3-2.3 C18.2,3.1,17.9,3,17.7,3S17.2,3.1,17,3.3l-1.4,1.4l-1.4-1.4C13.9,3.1,13.7,3,13.4,3L13.4,3z"></path></g>
-      <g id="open-book"><path d="M-74 29h48v48h-48V29zM0 0h24v24H0V0zm0 0h24v24H0V0z" fill="none"></path><path d="M13 12h7v1.5h-7zm0-2.5h7V11h-7zm0 5h7V16h-7zM21 4H3c-1.1 0-2 .9-2 2v13c0 1.1.9 2 2 2h18c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm0 15h-9V6h9v13z"></path></g>
       <g id="redo"><path d="M18.4 10.6C16.55 8.99 14.15 8 11.5 8c-4.65 0-8.58 3.03-9.96 7.22L3.9 16c1.05-3.19 4.05-5.5 7.6-5.5 1.95 0 3.73.72 5.12 1.88L13 16h9V7l-3.6 3.6z"></path></g>
       <g id="remove"><path d="M19 13H5v-2h14v2z"></path></g>
       <g id="rotate-left"><path d="M0 0h24v24H0z" fill="none"></path><path d="M7.34 6.41L.86 12.9l6.49 6.48 6.49-6.48-6.5-6.49zM3.69 12.9l3.66-3.66L11 12.9l-3.66 3.66-3.65-3.66zm15.67-6.26C17.61 4.88 15.3 4 13 4V.76L8.76 5 13 9.24V6c1.79 0 3.58.68 4.95 2.05 2.73 2.73 2.73 7.17 0 9.9C16.58 19.32 14.79 20 13 20c-.97 0-1.94-.21-2.84-.61l-1.49 1.49C10.02 21.62 11.51 22 13 22c2.3 0 4.61-.88 6.36-2.64 3.52-3.51 3.52-9.21 0-12.72z"></path></g>

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

@@ -138,7 +138,7 @@
 <!-- TODO(dpapad): Add aria-label and title for all buttons -->
 <div id="toolbar">
   <div id="start">
-    <cr-icon-button id="sidenavToggle" iron-icon="pdf:open-book"
+    <cr-icon-button id="sidenavToggle" iron-icon="cr20:menu"
         on-click="onSidenavToggleClick_">
     </cr-icon-button>
     <span id="title">[[docTitle]]</span>