Remove user specified typeface id.

src/core/SkTypeface.cpp

 /*
  * Copyright 2011 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAdvancedTypefaceMetrics.h"
 #include "SkEndian.h"
 #include "SkFontDescriptor.h"
 #include "SkFontMgr.h"
 #include "SkMutex.h"
 #include "SkOTTable_OS_2.h"
 #include "SkOnce.h"
 #include "SkStream.h"
 #include "SkTypeface.h"
+#include "SkTypefaceCache.h"
 
-SkTypeface::SkTypeface(const SkFontStyle& style, SkFontID fontID, bool isFixedPitch)
-    : fUniqueID(fontID), fStyle(style), fIsFixedPitch(isFixedPitch) { }
+SkTypeface::SkTypeface(const SkFontStyle& style, bool isFixedPitch)
+    : fUniqueID(SkTypefaceCache::NewFontID()), fStyle(style), fIsFixedPitch(isFixedPitch) { }
 
 SkTypeface::~SkTypeface() { }
 
 #ifdef SK_WHITELIST_SERIALIZED_TYPEFACES
 extern void WhitelistSerializeTypeface(const SkTypeface*, SkWStream* );
 #define SK_TYPEFACE_DELEGATE WhitelistSerializeTypeface
 #else
 #define SK_TYPEFACE_DELEGATE nullptr
 #endif
 
 sk_sp<SkTypeface> (*gCreateTypefaceDelegate)(const char[], SkFontStyle) = nullptr;
 
 void (*gSerializeTypefaceDelegate)(const SkTypeface*, SkWStream* ) = SK_TYPEFACE_DELEGATE;
 sk_sp<SkTypeface> (*gDeserializeTypefaceDelegate)(SkStream* ) = nullptr;
 
 ///////////////////////////////////////////////////////////////////////////////
 
 namespace {
 
 class SkEmptyTypeface : public SkTypeface {
 public:
     static SkEmptyTypeface* Create() { return new SkEmptyTypeface; }
 protected:
-    SkEmptyTypeface() : SkTypeface(SkFontStyle(), 0, true) { }
+    SkEmptyTypeface() : SkTypeface(SkFontStyle(), true) { }
 
     SkStreamAsset* onOpenStream(int* ttcIndex) const override { return nullptr; }
     SkScalerContext* onCreateScalerContext(const SkScalerContextEffects&,
                                            const SkDescriptor*) const override {
         return nullptr;
     }
     void onFilterRec(SkScalerContextRec*) const override { }
     virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics(
                                 PerGlyphInfo,
                                 const uint32_t*, uint32_t) const override { return nullptr; }
@@ skipping 300 matching lines @@
     SkAutoTDelete<SkScalerContext> ctx(this->createScalerContext(noeffects, desc, true));
     if (ctx.get()) {
         SkPaint::FontMetrics fm;
         ctx->getFontMetrics(&fm);
         bounds->set(fm.fXMin * invTextSize, fm.fTop * invTextSize,
                     fm.fXMax * invTextSize, fm.fBottom * invTextSize);
         return true;
     }
     return false;
 }