fix slow performance on desktops by uping our max-texture-dim from 512 to
whatever the gpu itself broadcasts.



git-svn-id: http://skia.googlecode.com/svn/trunk@742 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrGpuGL.cpp b/gpu/src/GrGpuGL.cpp
index ae27189..fb23152 100644
--- a/gpu/src/GrGpuGL.cpp
+++ b/gpu/src/GrGpuGL.cpp
@@ -380,6 +380,8 @@
     fMinRenderTargetHeight = GrMax<GLuint>(fMinRenderTargetHeight, 16);
 #endif
 
+    GR_GL_GetIntegerv(GL_MAX_TEXTURE_SIZE, &fMaxTextureDimension);
+
 #if GR_COLLECT_STATS
     ++fStats.fRenderTargetChngCnt;
 #endif