Add strings to debug/null interfaces glGetString
Review URL: http://codereview.appspot.com/6294062/



git-svn-id: http://skia.googlecode.com/svn/trunk@4263 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp b/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp
index ebed417..d3d01cc 100644
--- a/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp
+++ b/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp
@@ -843,9 +843,13 @@
         case GR_GL_EXTENSIONS:
             return (const GrGLubyte*)"GL_ARB_framebuffer_object GL_ARB_blend_func_extended GL_ARB_timer_query GL_ARB_draw_buffers GL_ARB_occlusion_query GL_EXT_blend_color GL_EXT_stencil_wrap";
         case GR_GL_VERSION:
-            return (const GrGLubyte*)"4.0 Null GL";
+            return (const GrGLubyte*)"4.0 Debug GL";
         case GR_GL_SHADING_LANGUAGE_VERSION:
-            return (const GrGLubyte*)"4.20.8 Null GLSL";
+            return (const GrGLubyte*)"4.20.8 Debug GLSL";
+        case GR_GL_VENDOR:
+            return (const GrGLubyte*)"Debug Vendor";
+        case GR_GL_RENDERER:
+            return (const GrGLubyte*)"The Debug (Non-)Renderer";
         default:
             GrCrash("Unexpected name to GetString");
             return NULL;