Don't send NULL buffer data hint in chrome

Review URL: http://codereview.appspot.com/4657067/



git-svn-id: http://skia.googlecode.com/svn/trunk@1778 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/include/GrGLConfig_chrome.h b/gpu/include/GrGLConfig_chrome.h
index 738e801..9c25cb2 100644
--- a/gpu/include/GrGLConfig_chrome.h
+++ b/gpu/include/GrGLConfig_chrome.h
@@ -10,4 +10,8 @@
 // ANGLE creates a temp VB for vertex attributes not specified per-vertex.
 #define GR_GL_NO_CONSTANT_ATTRIBUTES    GR_WIN32_BUILD
 
+// cmd buffer allocates memory and memsets it to zero when it sees glBufferData
+// with NULL.
+#define GR_GL_USE_BUFFER_DATA_NULL_HINT 0
+
 #endif