Fix scaling of layout bounds.

Change-Id: I9d8c8924900fed69030ee3e8d6decee89ca67820

Author: Dianne Hackborn

core/jni/android/graphics/BitmapFactory.cpp

@@ -304,7 +304,15 @@ static jobject doDecode(JNIEnv* env, SkStream* stream, jobject padding,
             return nullObjectReturn("layoutBounds == null");
         }
 
-        env->SetIntArrayRegion(layoutBounds, 0, 4, (jint*) peeker.fLayoutBounds);
+        jint scaledBounds[4];
+        if (willScale) {
+            for (int i=0; i<4; i++) {
+                scaledBounds[i] = (jint)((((jint*)peeker.fLayoutBounds)[i]*scale) + .5f);
+            }
+        } else {
+            memcpy(scaledBounds, (jint*)peeker.fLayoutBounds, sizeof(scaledBounds));
+        }
+        env->SetIntArrayRegion(layoutBounds, 0, 4, scaledBounds);
         if (javaBitmap != NULL) {
             env->SetObjectField(javaBitmap, gBitmap_layoutBoundsFieldID, layoutBounds);
         }

graphics/java/android/graphics/BitmapFactory.java

@@ -556,6 +556,7 @@ private static Bitmap finishDecode(Bitmap bm, Rect outPadding, Options opts) {
             return bm;
         }
         byte[] np = bm.getNinePatchChunk();
+        int[] lb = bm.getLayoutBounds();
         final boolean isNinePatch = np != null && NinePatch.isNinePatchChunk(np);
         if (opts.inScaled || isNinePatch) {
             float scale = targetDensity / (float) density;
@@ -569,6 +570,13 @@ private static Bitmap finishDecode(Bitmap bm, Rect outPadding, Options opts) {
                     np = nativeScaleNinePatch(np, scale, outPadding);
                     bm.setNinePatchChunk(np);
                 }
+                if (lb != null) {
+                    int[] newLb = new int[lb.length];
+                    for (int i=0; i<lb.length; i++) {
+                        newLb[i] = (int)((lb[i]*scale)+.5f);
+                    }
+                    bm.setLayoutBounds(newLb);
+                }
             }
 
             bm.setDensity(targetDensity);