Clear mLineWidths in LineBreaker::finish()

There was the possibility of stale indents from previous invocations
persisting in the mLineWidths across multiple invocations. This patch
clears them.

Bug: 28090810
Change-Id: I3621dfbe983512046289373711709aeade52eab4

2 files changed, 4 insertions, 0 deletions

diff --git a/include/minikin/LineBreaker.h b/include/minikin/LineBreaker.h
index e28f11d..1d81404 100644
--- a/include/minikin/LineBreaker.h
+++ b/include/minikin/LineBreaker.h
@@ -69,6 +69,9 @@ class LineWidths {
             }
             return width;
         }
+        void clear() {
+            mIndents.clear();
+        }
     private:
         float mFirstWidth;
         int mFirstWidthLineCount;
diff --git a/libs/minikin/LineBreaker.cpp b/libs/minikin/LineBreaker.cpp
index 9c4ff6f..2a71f04 100644
--- a/libs/minikin/LineBreaker.cpp
+++ b/libs/minikin/LineBreaker.cpp
@@ -419,6 +419,7 @@ size_t LineBreaker::computeBreaks() {
 void LineBreaker::finish() {
     mWordBreaker.finish();
     mWidth = 0;
+    mLineWidths.clear();
     mCandidates.clear();
     mBreaks.clear();
     mWidths.clear();