During image destroy, delete textures only if we have a GL context.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_textures.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_textures.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_textures.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_textures.cc
index faf98aa8e9ba1adee33eca0e3def558fdbdad485..f3a5c0a9c93b8d8b958d20becb60bb64165bf181 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_textures.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_textures.cc
@@ -2275,8 +2275,8 @@ class MockGLImage : public gfx::GLImage {
   MockGLImage() {}
 
   // Overridden from gfx::GLImage:
-  MOCK_METHOD0(Destroy, void());
   MOCK_METHOD0(GetSize, gfx::Size());
+  MOCK_METHOD1(Destroy, void(bool));
   MOCK_METHOD1(BindTexImage, bool(unsigned));
   MOCK_METHOD1(ReleaseTexImage, void(unsigned));
   MOCK_METHOD0(WillUseTexImage, void());