pdfviewer: remove sqrt from the formula computing the scale (DPI is dots per inch, not dots per squ…

experimental/PdfViewer/pdf_viewer_main.cpp

Index: experimental/PdfViewer/pdf_viewer_main.cpp
diff --git a/experimental/PdfViewer/pdf_viewer_main.cpp b/experimental/PdfViewer/pdf_viewer_main.cpp
index 231aaa8ed9fd805dc0d261e8921800d1f1313837..5e9c2e1ba9a06dffef84ead9c0e2343747fbf456 100644
--- a/experimental/PdfViewer/pdf_viewer_main.cpp
+++ b/experimental/PdfViewer/pdf_viewer_main.cpp
@@ -140,8 +140,8 @@ static bool render_page(const SkString& outputDir,
         SkRect rect = renderer.MediaBox(page < 0 ? 0 :page);
 
         SkBitmap bitmap;
-        SkScalar width = SkScalarMul(rect.width(),  SkDoubleToScalar(sqrt(FLAGS_DPI / 72.0)));
-        SkScalar height = SkScalarMul(rect.height(),  SkDoubleToScalar(sqrt(FLAGS_DPI / 72.0)));
+        SkScalar width = SkScalarMul(rect.width(),  SkDoubleToScalar(FLAGS_DPI / 72.0));
+        SkScalar height = SkScalarMul(rect.height(),  SkDoubleToScalar(FLAGS_DPI / 72.0));
 
         rect = SkRect::MakeWH(width, height);