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

chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemView.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemView.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemView.java b/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemView.java
index b8267521800868fc97ab0b8fc7262522c9cb10a2..dcc011d52d98cba6e474ce1400314d5837f57e68 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemView.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadItemView.java
@@ -11,6 +11,7 @@ import android.text.TextUtils;
 import android.text.format.Formatter;
 import android.util.AttributeSet;
 import android.view.View;
+import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
@@ -153,7 +154,7 @@ public class DownloadItemView extends SelectableItemView<DownloadHistoryItemWrap
         }
 
         // Pick what icon to display for the item.
-        mIconResId = DownloadUtils.getIconResId(fileType, DownloadUtils.ICON_SIZE_24_DP);
+        mIconResId = DownloadUtils.getIconResId(fileType);
         updateIconView();
 
         Context context = mFilesizeView.getContext();
@@ -241,15 +242,25 @@ public class DownloadItemView extends SelectableItemView<DownloadHistoryItemWrap
 
     private void updateIconView() {
         if (isChecked()) {
+            mIconView.setScaleType(ImageView.ScaleType.CENTER);
+            mIconView.setPadding(0, 0, 0, 0);
             mIconView.setBackgroundColor(mIconBackgroundColorSelected);
             mIconView.setImageResource(R.drawable.ic_check_googblue_24dp);
             mIconView.setTint(mIconForegroundColorList);
         } else if (mThumbnailBitmap != null) {
             assert !mThumbnailBitmap.isRecycled();
+            mIconView.setScaleType(ImageView.ScaleType.CENTER);
+            mIconView.setPadding(0, 0, 0, 0);
             mIconView.setBackground(null);
             mIconView.setImageBitmap(mThumbnailBitmap);
             mIconView.setTint(null);
         } else {
+            mIconView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
+
+            final int padding = mIconView.getResources().getDimensionPixelSize(

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

This value should be cached as a member variable.  It's reused a lot.

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

Done.

+                    R.dimen.downloads_item_file_type_icon_padding);
+            mIconView.setPadding(padding, padding, padding, padding);
+
             mIconView.setBackgroundColor(mIconBackgroundColor);
             mIconView.setImageResource(mIconResId);
             mIconView.setTint(mIconForegroundColorList);