Update ANGLE to latest as of August 25, 2016

tools/gpu/gl/angle/GLTestContext_angle.cpp

Index: tools/gpu/gl/angle/GLTestContext_angle.cpp
diff --git a/tools/gpu/gl/angle/GLTestContext_angle.cpp b/tools/gpu/gl/angle/GLTestContext_angle.cpp
index daa53c4e0139167c7a53c6dcaf49c1f60f7d2f60..8cc6f99c9fde814e8989c31fb5ebfdaee42e06cf 100644
--- a/tools/gpu/gl/angle/GLTestContext_angle.cpp
+++ b/tools/gpu/gl/angle/GLTestContext_angle.cpp
@@ -199,7 +199,7 @@ GrGLuint ANGLEGLContext::eglImageToExternalTexture(GrEGLImage image) const {
     if (!this->gl()->hasExtension("GL_OES_EGL_image_external")) {
         return 0;
     }
-    typedef GrGLvoid (*EGLImageTargetTexture2DProc)(GrGLenum, GrGLeglImage);
+    typedef GrGLvoid (EGLAPIENTRY *EGLImageTargetTexture2DProc)(GrGLenum, GrGLeglImage);
     EGLImageTargetTexture2DProc glEGLImageTargetTexture2D =
         (EGLImageTargetTexture2DProc)eglGetProcAddress("glEGLImageTargetTexture2DOES");
     if (!glEGLImageTargetTexture2D) {