move annotations to canvas virtual

src/core/SkPaint.cpp

Index: src/core/SkPaint.cpp
diff --git a/src/core/SkPaint.cpp b/src/core/SkPaint.cpp
index 017662ff48bead0a00263c42336719f544d2475f..cdfb1104544eb15690ac5037057a570fcb3b4eb6 100644
--- a/src/core/SkPaint.cpp
+++ b/src/core/SkPaint.cpp
@@ -6,7 +6,6 @@
  */
 
 #include "SkPaint.h"
-#include "SkAnnotation.h"
 #include "SkAutoKern.h"
 #include "SkChecksum.h"
 #include "SkColorFilter.h"
@@ -54,7 +53,6 @@ SkPaint::SkPaint() {
     fRasterizer  = nullptr;
     fLooper      = nullptr;
     fImageFilter = nullptr;
-    fAnnotation  = nullptr;
 
     fTextSize   = SkPaintDefaults_TextSize;
     fTextScaleX = SK_Scalar1;
@@ -87,7 +85,6 @@ SkPaint::SkPaint(const SkPaint& src) {
     REF_COPY(fRasterizer);
     REF_COPY(fLooper);
     REF_COPY(fImageFilter);
-    REF_COPY(fAnnotation);
 
     COPY(fTextSize);
     COPY(fTextScaleX);
@@ -114,7 +111,6 @@ SkPaint::SkPaint(SkPaint&& src) {
     REF_MOVE(fRasterizer);
     REF_MOVE(fLooper);
     REF_MOVE(fImageFilter);
-    REF_MOVE(fAnnotation);
 
     MOVE(fTextSize);
     MOVE(fTextScaleX);
@@ -138,7 +134,6 @@ SkPaint::~SkPaint() {
     SkSafeUnref(fRasterizer);
     SkSafeUnref(fLooper);
     SkSafeUnref(fImageFilter);
-    SkSafeUnref(fAnnotation);
 }
 
 SkPaint& SkPaint::operator=(const SkPaint& src) {
@@ -158,7 +153,6 @@ SkPaint& SkPaint::operator=(const SkPaint& src) {
     REF_COPY(fRasterizer);
     REF_COPY(fLooper);
     REF_COPY(fImageFilter);
-    REF_COPY(fAnnotation);
 
     COPY(fTextSize);
     COPY(fTextScaleX);
@@ -191,7 +185,6 @@ SkPaint& SkPaint::operator=(SkPaint&& src) {
     REF_MOVE(fRasterizer);
     REF_MOVE(fLooper);
     REF_MOVE(fImageFilter);
-    REF_MOVE(fAnnotation);
 
     MOVE(fTextSize);
     MOVE(fTextScaleX);
@@ -218,7 +211,6 @@ bool operator==(const SkPaint& a, const SkPaint& b) {
         && EQUAL(fRasterizer)
         && EQUAL(fLooper)
         && EQUAL(fImageFilter)
-        && EQUAL(fAnnotation)
         && EQUAL(fTextSize)
         && EQUAL(fTextScaleX)
         && EQUAL(fTextSkewX)
@@ -420,11 +412,6 @@ SkImageFilter* SkPaint::setImageFilter(SkImageFilter* imageFilter) {
     return imageFilter;
 }
 
-SkAnnotation* SkPaint::setAnnotation(SkAnnotation* annotation) {
-    SkRefCnt_SafeAssign(fAnnotation, annotation);
-    return annotation;
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 
 static SkScalar mag2(SkScalar x, SkScalar y) {
@@ -1897,7 +1884,6 @@ void SkPaint::flatten(SkWriteBuffer& buffer) const {
         asint(this->getColorFilter()) |
         asint(this->getRasterizer()) |
         asint(this->getLooper()) |
-        asint(this->getAnnotation()) |
         asint(this->getImageFilter())) {
         flatFlags |= kHasEffects_FlatFlag;
     }
@@ -1931,13 +1917,6 @@ void SkPaint::flatten(SkWriteBuffer& buffer) const {
         buffer.writeFlattenable(this->getRasterizer());
         buffer.writeFlattenable(this->getLooper());
         buffer.writeFlattenable(this->getImageFilter());
-
-        if (fAnnotation) {
-            buffer.writeBool(true);
-            fAnnotation->writeToBuffer(buffer);
-        } else {
-            buffer.writeBool(false);
-        }
     }
 }
 
@@ -1981,8 +1960,14 @@ void SkPaint::unflatten(SkReadBuffer& buffer) {
         SkSafeUnref(this->setLooper(buffer.readDrawLooper()));
         SkSafeUnref(this->setImageFilter(buffer.readImageFilter()));
 
-        if (buffer.readBool()) {
-            this->setAnnotation(SkAnnotation::Create(buffer))->unref();
+        if (buffer.isVersionLT(SkReadBuffer::kAnnotationsMovedToCanvas_Version)) {
+            // We used to store annotations here (string+skdata) if this bool was true
+            if (buffer.readBool()) {
+                // Annotations have moved to drawAnnotation, so we just drop this one on the floor.
+                SkString key;
+                buffer.readString(&key);
+                SkSafeUnref(buffer.readByteArrayAsData());
+            }
         }
     } else {
         this->setPathEffect(nullptr);
@@ -2205,12 +2190,6 @@ void SkPaint::toString(SkString* str) const {
         str->append("</dd>");
     }
 
-    SkAnnotation* annotation = this->getAnnotation();
-    if (annotation) {
-        str->append("<dt>Annotation:</dt><dd>");
-        str->append("</dd>");
-    }
-
     str->append("<dt>Color:</dt><dd>0x");
     SkColor color = this->getColor();
     str->appendHex(color);
@@ -2437,7 +2416,7 @@ bool SkPaint::nothingToDraw() const {
 uint32_t SkPaint::getHash() const {
     // We're going to hash 10 pointers and 7 32-bit values, finishing up with fBitfields,
     // so fBitfields should be 10 pointers and 6 32-bit values from the start.
-    static_assert(offsetof(SkPaint, fBitfields) == 10 * sizeof(void*) + 6 * sizeof(uint32_t),
+    static_assert(offsetof(SkPaint, fBitfields) == 9 * sizeof(void*) + 6 * sizeof(uint32_t),
                   "SkPaint_notPackedTightly");
     return SkChecksum::Murmur3(reinterpret_cast<const uint32_t*>(this),
                                offsetof(SkPaint, fBitfields) + sizeof(fBitfields));