Change CHROMIUM_image declarations to support multi planar input.

cc/test/test_web_graphics_context_3d.h

Index: cc/test/test_web_graphics_context_3d.h
diff --git a/cc/test/test_web_graphics_context_3d.h b/cc/test/test_web_graphics_context_3d.h
index d8219f5827560bee78926c77a89d92bef7058dd4..b30a78a7b35593265e8dacb12b61d4f07ed2a10d 100644
--- a/cc/test/test_web_graphics_context_3d.h
+++ b/cc/test/test_web_graphics_context_3d.h
@@ -253,7 +253,7 @@ class TestWebGraphicsContext3D {
                                   GLenum access);
   virtual GLboolean unmapBufferCHROMIUM(GLenum target);
 
-  virtual GLuint createImageCHROMIUM(ClientBuffer buffer,
+  virtual GLuint createImageCHROMIUM(ClientBuffer* buffers,
                                      GLsizei width,
                                      GLsizei height,
                                      GLenum internalformat);