Add deferred texture upload API.

src/gpu/GrContext.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 "GrContext.h"
 #include "GrContextOptions.h"
 #include "GrDrawingManager.h"
@@ skipping 110 matching lines @@
     }
 
     delete fResourceProvider;
     delete fResourceCache;
     delete fBatchFontCache;
 
     fGpu->unref();
     fCaps->unref();
 }
 
+GrContextThreadSafeProxy* GrContext::threadSafeProxy() {
+    if (!fThreadSafeProxy) {
+        fThreadSafeProxy.reset(new GrContextThreadSafeProxy(fCaps, this->uniqueID()));
+    }
+    return SkRef(fThreadSafeProxy.get());
+}
+
 void GrContext::abandonContext() {
     ASSERT_SINGLE_OWNER
 
     fResourceProvider->abandon();
 
     // Need to abandon the drawing manager first so all the render targets
     // will be released/forgotten before they too are abandoned.
     fDrawingManager->abandon();
 
     // abandon first to so destructors
@@ skipping 522 matching lines @@
     ASSERT_SINGLE_OWNER
     fResourceCache->setLimits(maxTextures, maxTextureBytes);
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 void GrContext::dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const {
     ASSERT_SINGLE_OWNER
     fResourceCache->dumpMemoryStatistics(traceMemoryDump);
 }