remove SkWriteBuffer::reserve()

src/core/SkPictureFlat.cpp

Index: src/core/SkPictureFlat.cpp
diff --git a/src/core/SkPictureFlat.cpp b/src/core/SkPictureFlat.cpp
index 792345885c13ba5fb84acb250c999737be1b0b90..013bc7f98ea4799a2277301aaba746bb039544da 100644
--- a/src/core/SkPictureFlat.cpp
+++ b/src/core/SkPictureFlat.cpp
@@ -56,28 +56,3 @@ SkRefCnt* SkTypefacePlayback::set(int index, SkRefCnt* obj) {
     SkRefCnt_SafeAssign(fArray[index], obj);
     return obj;
 }
-
-///////////////////////////////////////////////////////////////////////////////
-
-SkFlatController::SkFlatController(uint32_t writeBufferFlags)
-: fBitmapHeap(nullptr)
-, fTypefaceSet(nullptr)
-, fTypefacePlayback(nullptr)
-, fWriteBufferFlags(writeBufferFlags) {}
-
-SkFlatController::~SkFlatController() {
-    SkSafeUnref(fBitmapHeap);
-    SkSafeUnref(fTypefaceSet);
-}
-
-void SkFlatController::setBitmapHeap(SkBitmapHeap* heap) {
-    SkRefCnt_SafeAssign(fBitmapHeap, heap);
-}
-
-void SkFlatController::setTypefaceSet(SkRefCntSet *set) {
-    SkRefCnt_SafeAssign(fTypefaceSet, set);
-}
-
-void SkFlatController::setTypefacePlayback(SkTypefacePlayback* playback) {
-    fTypefacePlayback = playback;
-}