Cleaning up code

app/src/main/java/acr/browser/lightning/database/HistoryItem.java

@@ -12,11 +12,8 @@ import acr.browser.lightning.utils.Preconditions;
 public class HistoryItem implements Comparable<HistoryItem> {
 
     @NonNull private String mUrl = "";
-
     @NonNull private String mTitle = "";
-
     @NonNull private String mFolder = "";
-
     @Nullable private Bitmap mBitmap = null;
 
     private int mImageId = 0;
@@ -126,13 +123,12 @@ public class HistoryItem implements Comparable<HistoryItem> {
 
         HistoryItem that = (HistoryItem) o;
 
-        if (mImageId != that.mImageId) return false;
-        if (mPosition != that.mPosition) return false;
-        if (mIsFolder != that.mIsFolder) return false;
-        if (!mUrl.equals(that.mUrl)) return false;
-        if (!mTitle.equals(that.mTitle)) return false;
-
-        return mFolder.equals(that.mFolder);
+        return mImageId == that.mImageId &&
+            mPosition == that.mPosition &&
+            mIsFolder == that.mIsFolder &&
+            mUrl.equals(that.mUrl) &&
+            mTitle.equals(that.mTitle) &&
+            mFolder.equals(that.mFolder);
 
     }
 

app/src/main/java/acr/browser/lightning/database/downloads/DownloadItem.java

@@ -11,9 +11,7 @@ import acr.browser.lightning.utils.Preconditions;
 public class DownloadItem implements Comparable<DownloadItem> {
 
     @NonNull private String mUrl = "";
-
     @NonNull private String mTitle = "";
-
     @NonNull private String mContentSize = "";
 
     public DownloadItem() {}
@@ -76,10 +74,9 @@ public class DownloadItem implements Comparable<DownloadItem> {
 
         DownloadItem that = (DownloadItem) o;
 
-        if (!mUrl.equals(that.mUrl)) return false;
-        if (!mTitle.equals(that.mTitle)) return false;
-
-        return mContentSize.equals(that.mContentSize);
+        return mUrl.equals(that.mUrl) &&
+            mTitle.equals(that.mTitle) &&
+            mContentSize.equals(that.mContentSize);
 
     }
 

app/src/main/java/acr/browser/lightning/search/engine/BaseSearchEngine.java

@@ -21,7 +21,7 @@ public class BaseSearchEngine {
     @NonNull private final String mQueryUrl;
     @StringRes private final int mTitleRes;
 
-    public BaseSearchEngine(@NonNull String iconUrl,
+    BaseSearchEngine(@NonNull String iconUrl,
                      @NonNull String queryUrl,
                      @StringRes int titleRes) {
 

app/src/main/java/acr/browser/lightning/search/suggestions/BaseSuggestionsModel.java

@@ -151,6 +151,7 @@ public abstract class BaseSuggestionsModel {
         return language;
     }
 
+    @NonNull
     private static final Interceptor REWRITE_CACHE_CONTROL_INTERCEPTOR = new Interceptor() {
         @Override
         public Response intercept(@NonNull Chain chain) throws IOException {

app/src/main/java/acr/browser/lightning/utils/StringBuilderUtils.java

@@ -8,7 +8,7 @@ import android.support.annotation.NonNull;
  * API equality with the {@link String}
  * API.
  */
-public class StringBuilderUtils {
+class StringBuilderUtils {
 
     private static final String SPACE = " ";
     private static final String EMPTY = "";
@@ -21,7 +21,7 @@ public class StringBuilderUtils {
      * @param toReplace     the string to replace.
      * @param replacement   the replacement string.
      */
-    public static void replace(@NonNull StringBuilder stringBuilder,
+    static void replace(@NonNull StringBuilder stringBuilder,
                         @NonNull String toReplace,
                         @NonNull String replacement) {
         int index = stringBuilder.indexOf(toReplace);