Pull getParams up to NewTabPageViewHolder.

Review-Url: https://codereview.chromium.org/2274663003
Cr-Commit-Position: refs/heads/master@{#414683}

chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardViewHolder.java

@@ -269,10 +269,6 @@ public class CardViewHolder extends NewTabPageViewHolder {
         return LayoutInflater.from(parent.getContext()).inflate(resourceId, parent, false);
     }
 
-    private RecyclerView.LayoutParams getParams() {
-        return (RecyclerView.LayoutParams) itemView.getLayoutParams();
-    }
-
     /**
      * Animates the card being swiped to the right as if the user had dismissed it. You must check
      * {@link #isDismissable()} before calling.

chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/NewTabPageViewHolder.java

@@ -50,4 +50,8 @@ public class NewTabPageViewHolder extends RecyclerView.ViewHolder {
      */
     public void updateLayoutParams() {
     }
+
+    protected RecyclerView.LayoutParams getParams() {
+        return (RecyclerView.LayoutParams) itemView.getLayoutParams();
+    }
 }

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

@@ -4,7 +4,6 @@
 
 package org.chromium.chrome.browser.ntp.snippets;
 
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.widget.TextView;
 
@@ -82,11 +81,10 @@ public class SectionHeaderViewHolder extends NewTabPageViewHolder {
      */
     public void updateDisplay() {
         mHeaderTextView.setText(mHeaderListItem.getHeaderText());
-        RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) itemView.getLayoutParams();
         int headerHeight = getHeaderHeight();
 
         itemView.setAlpha((float) headerHeight / mMaxSnippetHeaderHeight);
-        params.height = headerHeight;
+        getParams().height = headerHeight;
         itemView.requestLayout();
     }
 }