Reduce texture uploads for font atlas.

src/gpu/GrInOrderDrawBuffer.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrInOrderDrawBuffer.h"
 
 #include "GrBufferAllocPool.h"
 #include "GrDrawTargetCaps.h"
+#include "GrTextStrike.h"
 #include "GrGpu.h"
 #include "GrIndexBuffer.h"
 #include "GrPath.h"
 #include "GrRenderTarget.h"
 #include "GrTemplates.h"
 #include "GrTexture.h"
 #include "GrVertexBuffer.h"
 
 GrInOrderDrawBuffer::GrInOrderDrawBuffer(GrGpu* gpu,
                                          GrVertexBufferAllocPool* vertexPool,
@@ skipping 528 matching lines @@
     fCopySurfaces.reset();
     fGpuCmdMarkers.reset();
     fClipSet = true;
 }
 
 void GrInOrderDrawBuffer::flush() {
     if (fFlushing) {
         return;
     }
 
+    this->getContext()->getFontCache()->updateTextures();
+
     SkASSERT(kReserved_GeometrySrcType != this->getGeomSrc().fVertexSrc);
     SkASSERT(kReserved_GeometrySrcType != this->getGeomSrc().fIndexSrc);
 
     int numCmds = fCmds.count();
     if (0 == numCmds) {
         return;
     }
 
     GrAutoTRestore<bool> flushRestore(&fFlushing);
     fFlushing = true;
@@ skipping 413 matching lines @@
     this->addToCmdBuffer(kCopySurface_Cmd);
     return &fCopySurfaces.push_back();
 }
 
 
 void GrInOrderDrawBuffer::clipWillBeSet(const GrClipData* newClipData) {
     INHERITED::clipWillBeSet(newClipData);
     fClipSet = true;
     fClipProxyState = kUnknown_ClipProxyState;
 }