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

experimental/PdfViewer/pdf_viewer_main.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkCommandLineFlags.h"
 #include "SkDevice.h"
@@ skipping 122 matching lines @@
     if (!FLAGS_config.isEmpty() && strcmp(FLAGS_config[0], "nul") == 0) {
         SkBitmap bitmap;
         SkAutoTUnref<SkBaseDevice> device(SkNEW_ARGS(SkBitmapDevice, (bitmap)));
         SkNulCanvas canvas(device);
         renderer.renderPage(page < 0 ? 0 : page, &canvas, rect);
     } else {
         // 8888
         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);
 
         SkColor background = FLAGS_transparentBackground ? SK_ColorTRANSPARENT : SK_ColorWHITE;
 
 #ifdef PDF_DEBUG_3X
         setup_bitmap(&bitmap, 3 * (int)SkScalarToDouble(width), 3 * (int)SkScalarToDouble(height),
                      background);
 #else
         setup_bitmap(&bitmap, (int)SkScalarToDouble(width), (int)SkScalarToDouble(height),
@@ skipping 196 matching lines @@
     }
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif