[NTP::Downloads] Replace 36dp file type resources with vector drawables.

chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java
index 3987060b495cead2c2b6d46d0469fe4516c2e7e7..e7dcb4296b51f0ce23bcb129bc7e4e7f3411379e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SnippetArticleViewHolder.java
@@ -298,24 +298,13 @@ public class SnippetArticleViewHolder extends CardViewHolder implements Impressi
     private void setThumbnailFromFileType(int fileType) {
         mThumbnailView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
 
-        // The provided asset is 36dp, but the spec requires 32dp. Add padding to force the asset to
-        // be scaled down.
-        final int actualIconSizeDp = 36;
-        final int desiredIconSizeDp = 32;
-        Drawable icon = ApiCompatibilityUtils.getDrawable(mThumbnailView.getResources(),
-                DownloadUtils.getIconResId(fileType, DownloadUtils.ICON_SIZE_36_DP));
-
-        final int drawableSize = icon.getIntrinsicWidth();
-        assert icon.getIntrinsicHeight() == drawableSize;
-
-        final int viewSize = mThumbnailView.getResources().getDimensionPixelSize(
-                R.dimen.snippets_thumbnail_size);
-        final float scale = ((float) desiredIconSizeDp) / actualIconSizeDp;
-        final int padding = (int) (viewSize / 2f - drawableSize * scale / 2f);
+        final int padding = mThumbnailView.getResources().getDimensionPixelSize(

[gone, 2017/03/07 17:08:28]

How often is this value reused?  Should this be cached, as well?

[vitaliii, 2017/03/08 12:36:50]

Done.

+                R.dimen.snippets_thumbnail_file_type_icon_padding);
         mThumbnailView.setPadding(padding, padding, padding, padding);
 
         mThumbnailView.setBackgroundColor(mIconBackgroundColor);
-        mThumbnailView.setImageDrawable(icon);
+        mThumbnailView.setImageDrawable(ApiCompatibilityUtils.getDrawable(

[vitaliii, 2017/03/08 12:36:50]

This did not work on Android 4.4.2 (device Micromax S301), the error was about
the resource not found.

+                mThumbnailView.getResources(), DownloadUtils.getIconResId(fileType)));
         mThumbnailView.setTint(mIconForegroundColorList);
     }