gpu: Add CHROMIUM_texture_from_image spec and fence support.

gpu/command_buffer/service/texture_manager_unittest.cc

Index: gpu/command_buffer/service/texture_manager_unittest.cc
diff --git a/gpu/command_buffer/service/texture_manager_unittest.cc b/gpu/command_buffer/service/texture_manager_unittest.cc
index 026b8c240082639c5502277d1764b33fe317f742..ae5c0038cbe913311a3f5ff0213f1a092a7cef74 100644
--- a/gpu/command_buffer/service/texture_manager_unittest.cc
+++ b/gpu/command_buffer/service/texture_manager_unittest.cc
@@ -149,7 +149,9 @@ class GLStreamTextureImageStub : public GLStreamTextureImage {
   // Overridden from GLImage:
   gfx::Size GetSize() override { return gfx::Size(); }
   unsigned GetInternalFormat() override { return 0; }
-  bool BindTexImage(unsigned target) override { return false; }
+  bool BindTexImage(unsigned target, gl::GLFence* fence) override {
+    return false;
+  }
   void ReleaseTexImage(unsigned target) override {}
   bool CopyTexImage(unsigned target) override { return false; }
   bool CopyTexSubImage(unsigned target,