Use per-typeface sets of glyphs for nvpr text

src/gpu/gl/GrGLPathRange.cpp

Index: src/gpu/gl/GrGLPathRange.cpp
diff --git a/src/gpu/gl/GrGLPathRange.cpp b/src/gpu/gl/GrGLPathRange.cpp
index 48a073c096dae2c0904d23dd30bcea9e3c443864..bc1659c9c378370d27a0eb0904db7a70aae79eaf 100644
--- a/src/gpu/gl/GrGLPathRange.cpp
+++ b/src/gpu/gl/GrGLPathRange.cpp
@@ -11,17 +11,29 @@
 #include "GrGLPathRendering.h"
 #include "GrGpuGL.h"
 
-GrGLPathRange::GrGLPathRange(GrGpuGL* gpu, size_t size, const SkStrokeRec& stroke)
-    : INHERITED(gpu, size, stroke),
-      fBasePathID(gpu->glPathRendering()->genPaths(fSize)),
-      fNumDefinedPaths(0) {
+GrGLPathRange::GrGLPathRange(GrGpuGL* gpu, PathGenerator* pathGenerator, const SkStrokeRec& stroke)
+    : INHERITED(gpu, pathGenerator, stroke),
+      fBasePathID(gpu->glPathRendering()->genPaths(this->getNumPaths())),
+      fGpuMemorySize(0) {
+    this->registerWithCache();
+}
+
+GrGLPathRange::GrGLPathRange(GrGpuGL* gpu,
+                             GrGLuint basePathID,
+                             uint32_t numPaths,
+                             size_t gpuMemorySize,
+                             const SkStrokeRec& stroke)
+    : INHERITED(gpu, numPaths, stroke),
+      fBasePathID(basePathID),
+      fGpuMemorySize(gpuMemorySize) {
+    this->registerWithCache();
 }
 
 GrGLPathRange::~GrGLPathRange() {
     this->release();
 }
 
-void GrGLPathRange::initAt(size_t index, const SkPath& skPath) {
+void GrGLPathRange::onInitPath(uint32_t index, const SkPath& skPath) const {
     GrGpuGL* gpu = static_cast<GrGpuGL*>(this->getGpu());
     if (NULL == gpu) {
         return;
@@ -33,16 +45,18 @@ void GrGLPathRange::initAt(size_t index, const SkPath& skPath) {
         GR_GL_CALL_RET(gpu->glInterface(), isPath, IsPath(fBasePathID + index)));
     SkASSERT(GR_GL_FALSE == isPath);
 
-    GrGLPath::InitPathObject(gpu, fBasePathID + index, skPath, fStroke);
-    ++fNumDefinedPaths;
-    this->didChangeGpuMemorySize();
+    GrGLPath::InitPathObject(gpu, fBasePathID + index, skPath, this->getStroke());
+
+    // TODO: Use a better approximation for the individual path sizes.
+    fGpuMemorySize += 100;
 }
 
 void GrGLPathRange::onRelease() {
     SkASSERT(this->getGpu());
 
     if (0 != fBasePathID && !this->isWrapped()) {
-        static_cast<GrGpuGL*>(this->getGpu())->glPathRendering()->deletePaths(fBasePathID, fSize);
+        static_cast<GrGpuGL*>(this->getGpu())->glPathRendering()->deletePaths(fBasePathID,
+                                                                              this->getNumPaths());
         fBasePathID = 0;
     }