Reset computed size of the <canvas> FontDescription when setting CRC2D.font

Source/core/html/canvas/CanvasRenderingContext2D.cpp

Index: Source/core/html/canvas/CanvasRenderingContext2D.cpp
diff --git a/Source/core/html/canvas/CanvasRenderingContext2D.cpp b/Source/core/html/canvas/CanvasRenderingContext2D.cpp
index 1c92df5400c91c95558a8266871c7923bbed128c..0ca3d6bcd6ab6ae048a816583ec0b1a7fca0b965 100644
--- a/Source/core/html/canvas/CanvasRenderingContext2D.cpp
+++ b/Source/core/html/canvas/CanvasRenderingContext2D.cpp
@@ -1944,9 +1944,12 @@ void CanvasRenderingContext2D::setFont(const String& newFont)
     // Map the <canvas> font into the text style. If the font uses keywords like larger/smaller, these will work
     // relative to the canvas.
     RefPtr<RenderStyle> newStyle = RenderStyle::create();
-    if (RenderStyle* computedStyle = canvas()->computedStyle())
-        newStyle->setFontDescription(computedStyle->fontDescription());
-    else {
+    if (RenderStyle* computedStyle = canvas()->computedStyle()) {
+        FontDescription elementFontDescription(computedStyle->fontDescription());
+        // Reset the computed size to avoid inheriting the zoom factor from the <canvas> element.
+        elementFontDescription.setComputedSize(elementFontDescription.specifiedSize());
+        newStyle->setFontDescription(elementFontDescription);
+    } else {
         FontFamily fontFamily;
         fontFamily.setFamily(defaultFontFamily);