Update packages and remove the instrument step (#854)

* several updates
* avoid the instrumented step in tests

packages/svgcanvas/common/browser.js

@@ -0,0 +1,67 @@
+/**
+ * Browser detection.
+ * @module browser
+ * @license MIT
+ *
+ * @copyright 2010 Jeff Schiller, 2010 Alexis Deveria
+ */
+
+const NSSVG = 'http://www.w3.org/2000/svg'
+
+const { userAgent } = navigator
+
+// Note: Browser sniffing should only be used if no other detection method is possible
+const isWebkit_ = userAgent.includes('AppleWebKit')
+const isGecko_ = userAgent.includes('Gecko/')
+const isChrome_ = userAgent.includes('Chrome/')
+const isMac_ = userAgent.includes('Macintosh')
+
+// text character positioning (for IE9 and now Chrome)
+const supportsGoodTextCharPos_ = (function () {
+  const svgroot = document.createElementNS(NSSVG, 'svg')
+  const svgContent = document.createElementNS(NSSVG, 'svg')
+  document.documentElement.append(svgroot)
+  svgContent.setAttribute('x', 5)
+  svgroot.append(svgContent)
+  const text = document.createElementNS(NSSVG, 'text')
+  text.textContent = 'a'
+  svgContent.append(text)
+  try { // Chrome now fails here
+    const pos = text.getStartPositionOfChar(0).x
+    return (pos === 0)
+  } catch (err) {
+    return false
+  } finally {
+    svgroot.remove()
+  }
+}())
+
+// Public API
+
+/**
+ * @function module:browser.isWebkit
+ * @returns {boolean}
+*/
+export const isWebkit = () => isWebkit_
+/**
+ * @function module:browser.isGecko
+ * @returns {boolean}
+*/
+export const isGecko = () => isGecko_
+/**
+ * @function module:browser.isChrome
+ * @returns {boolean}
+*/
+export const isChrome = () => isChrome_
+
+/**
+ * @function module:browser.isMac
+ * @returns {boolean}
+*/
+export const isMac = () => isMac_
+
+/**
+ * @function module:browser.supportsGoodTextCharPos
+ * @returns {boolean}
+*/
+export const supportsGoodTextCharPos = () => supportsGoodTextCharPos_