BASELINE: Update Chromium to 91.0.4472.160

Change-Id: I0def1f08a2412aeed79a9ab95dd50eb5c3f65f31
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

4 files changed, 18 insertions, 8 deletions

diff --git a/chromium/chrome/browser/resources/pdf/elements/shared-css.html b/chromium/chrome/browser/resources/pdf/elements/shared-css.html
index 16e61e42588..f53ceae474d 100644
--- a/chromium/chrome/browser/resources/pdf/elements/shared-css.html
+++ b/chromium/chrome/browser/resources/pdf/elements/shared-css.html
@@ -2,6 +2,7 @@
   <style>
     cr-icon-button {
       --cr-icon-button-fill-color: var(--pdf-toolbar-text-color);
+      --cr-icon-button-focus-outline-color: var(--google-grey-500);
       margin: 0;
     }
 
diff --git a/chromium/chrome/browser/resources/pdf/pdf_viewer.html b/chromium/chrome/browser/resources/pdf/pdf_viewer.html
index 386bd576254..fbc809859cd 100644
--- a/chromium/chrome/browser/resources/pdf/pdf_viewer.html
+++ b/chromium/chrome/browser/resources/pdf/pdf_viewer.html
@@ -58,15 +58,14 @@
   }
 
   #content-focus-rectangle {
-    border: 2px solid var(--google-grey-600);
+    border: 2px solid var(--google-grey-500);
     border-radius: 2px;
     box-sizing: border-box;
     height: 100%;
     pointer-events: none;
-    position: fixed;
+    position: absolute;
+    top: 0;
     width: 100%;
-    /* z-index for this should be higher than toolbar. */
-    z-index: 5;
   }
 
   viewer-ink-host {
@@ -107,6 +106,7 @@
   #main {
     flex: 1;
     overflow: hidden;
+    position: relative;
   }
 
   #scroller {
@@ -176,7 +176,8 @@
       <div id="sizer"></div>
       <div id="content"></div>
     </div>
-  <div>
+    <div id="content-focus-rectangle" hidden$="[[!documentHasFocus_]]"></div>
+  </div>
 </div>
 
 <template is="dom-if" if="[[showPasswordDialog_]]" restamp>
@@ -197,5 +198,3 @@
 <if expr="chromeos">
 <viewer-form-warning id="form-warning"></viewer-form-warning>
 </if>
-
-<div id="content-focus-rectangle" hidden$="[[!documentHasFocus_]]"></div>
diff --git a/chromium/chrome/browser/resources/pdf/pdf_viewer.js b/chromium/chrome/browser/resources/pdf/pdf_viewer.js
index 3212a430738..2b3ccb1f19c 100644
--- a/chromium/chrome/browser/resources/pdf/pdf_viewer.js
+++ b/chromium/chrome/browser/resources/pdf/pdf_viewer.js
@@ -972,7 +972,7 @@ export class PDFViewerElement extends PDFViewerBaseElement {
       const result = await this.currentController.saveAttachment(index);
 
       // Cap the PDF attachment size at 100 MB. This cap should be kept in sync
-      // with and is also enforced in pdf/out_of_process_instance.cc.
+      // with and is also enforced in pdf/pdf_view_plugin_base.h.
       const MAX_FILE_SIZE = 100 * 1000 * 1000;
       const bufView = new Uint8Array(result.dataToSave);
       assert(
diff --git a/chromium/chrome/browser/resources/pdf/viewport.js b/chromium/chrome/browser/resources/pdf/viewport.js
index c852530aec9..b3749d35f68 100644
--- a/chromium/chrome/browser/resources/pdf/viewport.js
+++ b/chromium/chrome/browser/resources/pdf/viewport.js
@@ -341,6 +341,16 @@ export class Viewport {
    */
   getViewportRect_() {
     const zoom = this.getZoom();
+    // Zoom can be 0 in the case of a PDF that is in a hidden iframe. Avoid
+    // returning undefined values in this case. See https://crbug.com/1202725.
+    if (zoom === 0) {
+      return {
+        x: 0,
+        y: 0,
+        width: 0,
+        height: 0,
+      };
+    }
     return {
       x: this.position.x / zoom,
       y: this.position.y / zoom,