Bug 1705327 - Remove infobar notification from pdf viewer r=bdahl

Recommandation from UX is to not show this bar, so remove it.

Differential Revision: https://phabricator.services.mozilla.com/D112163

toolkit/components/pdfjs/content/PdfJsTelemetry.jsm

@@ -24,13 +24,6 @@ var PdfJsTelemetry = {
   onViewerIsUsed() {
     Services.telemetry.scalarAdd("pdf.viewer.used", 1);
   },
-  onFallbackShown(featureId) {
-    Services.telemetry.scalarAdd("pdf.viewer.fallback_shown", 1);
-    let histogram = Services.telemetry.getHistogramById(
-      "PDF_VIEWER_FALLBACK_REASON"
-    );
-    histogram.add(featureId ?? "unknown");
-  },
   onFallbackError(featureId) {
     let histogram = Services.telemetry.getHistogramById(
       "PDF_VIEWER_FALLBACK_ERROR"

toolkit/components/pdfjs/content/PdfStreamConverter.jsm

@@ -174,13 +174,6 @@ function getLocalizedStrings(path) {
   }
   return map;
 }
-function getLocalizedString(strings, id, property) {
-  property = property || "textContent";
-  if (id in strings) {
-    return strings[id][property];
-  }
-  return id;
-}
 
 function isValidMatchesCount(data) {
   if (typeof data !== "object" || data === null) {
@@ -576,36 +569,7 @@ class ChromeActions {
    * @param {function} sendResponse - Callback function.
    */
   fallback(args, sendResponse) {
-    var featureId = args.featureId;
-
-    var domWindow = this.domWindow;
-    var strings = getLocalizedStrings("chrome.properties");
-    var message;
-    if (featureId === "forms") {
-      message = getLocalizedString(strings, "unsupported_feature_forms");
-    } else if (featureId === "signatures") {
-      message = getLocalizedString(strings, "unsupported_feature_signatures");
-    } else {
-      message = getLocalizedString(strings, "unsupported_feature");
-    }
-    PdfJsTelemetry.onFallbackShown(featureId);
-
-    // Request the display of a notification warning in the associated window
-    // when the renderer isn't sure a pdf displayed correctly.
-    let actor = getActor(domWindow);
-    if (actor) {
-      actor.sendAsyncMessage("PDFJS:Parent:displayWarning", {
-        message,
-        label: getLocalizedString(strings, "open_with_different_viewer"),
-        accessKey: getLocalizedString(
-          strings,
-          "open_with_different_viewer",
-          "accessKey"
-        ),
-      });
-
-      actor.fallbackCallback = sendResponse;
-    }
+    sendResponse(false);
   }
 
   updateFindControlState(data) {

toolkit/components/pdfjs/test/browser.ini

@@ -24,6 +24,7 @@ support-files =
   file_pdfjs_object_stream.pdf
   file_pdfjs_object_stream.pdf^headers^
 [browser_pdfjs_notification_close_on_navigation.js]
+skip-if = true # see bug 1705327
 [browser_pdfjs_octet_stream.js]
 support-files =
   file_pdfjs_object_stream.pdf

toolkit/components/telemetry/Histograms.json

@@ -10096,17 +10096,6 @@
     "n_buckets": 50,
     "description": "Time spent to display first page in PDF Viewer (ms)"
   },
-  "PDF_VIEWER_FALLBACK_REASON": {
-    "record_in_processes": ["content"],
-    "products": ["firefox"],
-    "expires_in_version": "92",
-    "alert_emails": ["bdahl@mozilla.com"],
-    "releaseChannelCollection": "opt-out",
-    "bug_numbers": [1630844, 1666979, 1689264],
-    "kind": "categorical",
-    "labels": ["unknown", "forms", "javaScript", "signatures", "smask", "shadingPattern", "font", "errorTilingPattern", "errorExtGState", "errorXObject", "errorFontLoadType3", "errorFontState", "errorFontMissing", "errorFontTranslate", "errorColorSpace", "errorOperatorList", "errorFontToUnicode", "errorFontLoadNative", "errorFontGetPath"],
-    "description": "The reason the fallback bar was shown."
-  },
   "PDF_VIEWER_FALLBACK_ERROR": {
     "record_in_processes": ["main", "content"],
     "products": ["firefox"],
@@ -10115,7 +10104,7 @@
     "releaseChannelCollection": "opt-out",
     "bug_numbers": [1643402, 1666979, 1689264],
     "kind": "categorical",
-    "labels": ["unknown", "forms", "javaScript", "smask", "shadingPattern", "font", "errorTilingPattern", "errorExtGState", "errorXObject", "errorFontLoadType3", "errorFontState", "errorFontMissing", "errorFontTranslate", "errorColorSpace", "errorOperatorList", "errorFontToUnicode", "errorFontLoadNative", "errorFontGetPath"],
+    "labels": ["unknown", "forms", "javaScript", "signatures", "smask", "shadingPattern", "font", "errorTilingPattern", "errorExtGState", "errorXObject", "errorFontLoadType3", "errorFontState", "errorFontMissing", "errorFontTranslate", "errorColorSpace", "errorOperatorList", "errorFontToUnicode", "errorFontLoadNative", "errorFontGetPath"],
     "description": "All errors that could trigger the fallback bar, even after the bar is shown."
   },
   "PDF_VIEWER_TAGGED": {