[QRCode Android] Scale QRcode bitmap for downloads

Bug: 1085873
Change-Id: I2ec9e4e673757c31ea354bb542430512199771a6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2213882Reviewed-by: Travis Skare <skare@chromium.org>
Commit-Queue: Gayane Petrosyan <gayane@chromium.org>
Cr-Commit-Position: refs/heads/master@{#771375}

chrome/browser/share/android/java/res/values/dimens.xml

@@ -14,4 +14,5 @@
     <dimen name="url_box_top_padding">128dp</dimen>
     <dimen name="url_box_left_padding">40dp</dimen>
     <dimen name="url_box_bottom_padding">32dp</dimen>
+    <dimen name="qrcode_size">212dp</dimen>
 </resources>

chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/qrcode/share_tab/QrCodeShareMediator.java

@@ -135,8 +135,8 @@ class QrCodeShareMediator implements ShareImageFileUtils.OnImageSaveListener {
 
     private Bitmap addUrlToBitmap(Bitmap bitmap, String url) {
         // Assumes QR code bitmap is a square.
-        int qrCodeSize = bitmap.getWidth();
-
+        int qrCodeSize = mContext.getResources().getDimensionPixelSize(
+                org.chromium.chrome.browser.share.R.dimen.qrcode_size);
         int fontSize = mContext.getResources().getDimensionPixelSize(R.dimen.text_size_large);
         int textLeftPadding = mContext.getResources().getDimensionPixelSize(
                 org.chromium.chrome.browser.share.R.dimen.url_box_left_padding);
@@ -164,7 +164,8 @@ class QrCodeShareMediator implements ShareImageFileUtils.OnImageSaveListener {
         canvas.drawColor(android.graphics.Color.WHITE);
         canvas.translate(textLeftPadding, textTopPadding);
         mTextLayout.draw(canvas);
-        canvas.drawBitmap(bitmap, (int) ((width - qrCodeSize) / 2) - textLeftPadding,
+        canvas.drawBitmap(Bitmap.createScaledBitmap(bitmap, qrCodeSize, qrCodeSize, false),
+                (int) ((width - qrCodeSize) / 2) - textLeftPadding,
                 mTextLayout.getHeight() + textBottomPadding, mTextPaint);
 
         return newBitmap;