Change CHROMIUM_image declarations to support multi planar input.

cc/test/test_gles2_interface.h

Index: cc/test/test_gles2_interface.h
diff --git a/cc/test/test_gles2_interface.h b/cc/test/test_gles2_interface.h
index 3a174afd06b623cb137f45fbae303ec37af18d26..1953295be144f258f21926374f3e94d128dde8d1 100644
--- a/cc/test/test_gles2_interface.h
+++ b/cc/test/test_gles2_interface.h
@@ -123,7 +123,7 @@ class TestGLES2Interface : public gpu::gles2::GLES2InterfaceStub {
                             GLsizei image_size,
                             const void* data) override;
   void WaitAsyncTexImage2DCHROMIUM(GLenum target) override;
-  GLuint CreateImageCHROMIUM(ClientBuffer buffer,
+  GLuint CreateImageCHROMIUM(ClientBuffer* buffers,
                              GLsizei width,
                              GLsizei height,
                              GLenum internalformat) override;