fix [2542425] memory leak during video recording

[Sorted|Keyed]Vector<TYPE> would leak their whole storage when resized
from the end and TYPE had trivial dtor and copy operators.

Change-Id: I8555bb1aa0863df72de27d67ae50e20706e90cf5
diff --git a/libs/utils/VectorImpl.cpp b/libs/utils/VectorImpl.cpp
index 0322af7..4954ffe 100644
--- a/libs/utils/VectorImpl.cpp
+++ b/libs/utils/VectorImpl.cpp
@@ -351,6 +351,7 @@
         {
             const SharedBuffer* cur_sb = SharedBuffer::sharedBuffer(mStorage);
             SharedBuffer* sb = cur_sb->editResize(new_capacity * mItemSize);
+            release_storage();
             mStorage = sb->data();
         } else {
             SharedBuffer* sb = SharedBuffer::alloc(new_capacity * mItemSize);
@@ -403,6 +404,7 @@
         {
             const SharedBuffer* cur_sb = SharedBuffer::sharedBuffer(mStorage);
             SharedBuffer* sb = cur_sb->editResize(new_capacity * mItemSize);
+            release_storage();
             mStorage = sb->data();
         } else {
             SharedBuffer* sb = SharedBuffer::alloc(new_capacity * mItemSize);