Move copy-surface-as-draw fallback to GrGLGpu.

src/gpu/gl/GrGLGpuProgramCache.cpp

Index: src/gpu/gl/GrGLGpuProgramCache.cpp
diff --git a/src/gpu/gl/GrGLGpuProgramCache.cpp b/src/gpu/gl/GrGLGpuProgramCache.cpp
index 911fd936e80296293c767ede5d071ad193e205eb..06efe299c1c916dd92bcfd843e4d7b11e08aa307 100644
--- a/src/gpu/gl/GrGLGpuProgramCache.cpp
+++ b/src/gpu/gl/GrGLGpuProgramCache.cpp
@@ -90,7 +90,7 @@ int GrGLGpu::ProgramCache::search(const GrProgramDesc& desc) const {
     return SkTSearch(fEntries, fCount, desc, sizeof(Entry*), less);
 }
 
-GrGLProgram* GrGLGpu::ProgramCache::getProgram(const DrawArgs& args) {
+GrGLProgram* GrGLGpu::ProgramCache::refProgram(const DrawArgs& args) {
 #ifdef PROGRAM_CACHE_STATS
     ++fTotalRequests;
 #endif
@@ -193,5 +193,5 @@ GrGLProgram* GrGLGpu::ProgramCache::getProgram(const DrawArgs& args) {
         }
     }
     ++fCurrLRUStamp;
-    return entry->fProgram;
+    return SkRef(entry->fProgram.get());
 }