Make GrTextureStripAtlas flush pending IO on newly acquired texture

src/gpu/effects/GrTextureStripAtlas.cpp

Index: src/gpu/effects/GrTextureStripAtlas.cpp
diff --git a/src/gpu/effects/GrTextureStripAtlas.cpp b/src/gpu/effects/GrTextureStripAtlas.cpp
index 1543a2e9dbed65129e21a2b78083f1c3378b3ad6..b552c9d94f0337f1a3585c131b46bf6aab1b564d 100644
--- a/src/gpu/effects/GrTextureStripAtlas.cpp
+++ b/src/gpu/effects/GrTextureStripAtlas.cpp
@@ -209,6 +209,8 @@ void GrTextureStripAtlas::lockTexture() {
         if (!fTexture) {
             return;
         }
+
+        fDesc.fContext->flushSurfaceIO(fTexture);

[bsalomon, 2016/08/22 16:52:57]

Could you add a comment here that we need to do this because we will be issuing
writes to the surface using kDontFlush_PixelOpsFlag?

[ajuma, 2016/08/24 13:12:39]

Done.

         fDesc.fContext->textureProvider()->assignUniqueKeyToTexture(key, fTexture);
         // This is a new texture, so all of our cache info is now invalid
         this->initLRU();