fix border style without borderRadius

Summary:
closes facebook#6721 closes facebook#3159
before(without borderRadius)
![bug](https://cloud.githubusercontent.com/assets/1488195/14235087/fcf79f8a-f9eb-11e5-9d44-7ab1d131be24.jpg)

after
![fix](https://cloud.githubusercontent.com/assets/1488195/14235067/8cf128b4-f9eb-11e5-8170-ad3a146d6104.jpg)
Closes facebook#6789

Differential Revision: D3240657

Pulled By: mkonicek

fb-gh-sync-id: 4eb8f72d7278d880297fb73653ef530719af3d5b
fbshipit-source-id: 4eb8f72d7278d880297fb73653ef530719af3d5b

Author: skv-headless

Examples/UIExplorer/ViewExample.js

@@ -46,7 +46,6 @@ var ViewBorderStyleExample = React.createClass({
         <View>
           <View style={{
             borderWidth: 1,
-            borderRadius: 5,
             borderStyle: this.state.showBorder ? 'dashed' : null,
             padding: 5
           }}>

ReactAndroid/src/main/java/com/facebook/react/views/view/ReactViewBackgroundDrawable.java

@@ -95,10 +95,14 @@ private static enum BorderStyle {
 
   @Override
   public void draw(Canvas canvas) {
-    if ((!CSSConstants.isUndefined(mBorderRadius) && mBorderRadius > 0) || mBorderCornerRadii != null) {
-      drawRoundedBackgroundWithBorders(canvas);
-    } else {
+    updatePathEffect();
+    boolean roundedBorders = mBorderCornerRadii != null ||
+        (!CSSConstants.isUndefined(mBorderRadius) && mBorderRadius > 0);
+
+    if ((mBorderStyle == null || mBorderStyle == BorderStyle.SOLID) && !roundedBorders) {
       drawRectangularBackgroundWithBorders(canvas);
+    } else {
+      drawRoundedBackgroundWithBorders(canvas);
     }
   }
 
@@ -231,7 +235,6 @@ private void drawRoundedBackgroundWithBorders(Canvas canvas) {
       mPaint.setColor(ColorUtil.multiplyColorAlpha(borderColor, mAlpha));
       mPaint.setStyle(Paint.Style.STROKE);
       mPaint.setStrokeWidth(fullBorderWidth);
-      mPaint.setPathEffect(mPathEffectForBorderStyle);
       canvas.drawPath(mPathForBorderRadius, mPaint);
     }
   }
@@ -298,10 +301,17 @@ private void updatePath() {
         bottomLeftRadius + extraRadiusForOutline
       },
       Path.Direction.CW);
+  }
 
+  /**
+   * Set type of border
+   */
+  private void updatePathEffect() {
     mPathEffectForBorderStyle = mBorderStyle != null
         ? mBorderStyle.getPathEffect(getFullBorderWidth())
         : null;
+
+    mPaint.setPathEffect(mPathEffectForBorderStyle);
   }
 
   /**