Revert of gpu: fix CopyTextureCHROMIUM for immutable texture.

gpu/command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.cc

Index: gpu/command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.cc
diff --git a/gpu/command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.cc b/gpu/command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.cc
index a8cbb66580960fd998334dbb8920cd30438ae9d3..2c44e1a3562cee3fbef869027aac3d5bf8eb8c13 100644
--- a/gpu/command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.cc
+++ b/gpu/command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.cc
@@ -57,43 +57,6 @@
   glBindTexture(GL_TEXTURE_2D, textures_[0]);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE,
                pixels);
-
-  glCopyTextureCHROMIUM(GL_TEXTURE_2D, textures_[0], textures_[1], 0, GL_RGBA,
-                        GL_UNSIGNED_BYTE);
-  EXPECT_TRUE(glGetError() == GL_NO_ERROR);
-
-  // Check the FB is still bound.
-  GLint value = 0;
-  glGetIntegerv(GL_FRAMEBUFFER_BINDING, &value);
-  GLuint fb_id = value;
-  EXPECT_EQ(framebuffer_id_, fb_id);
-
-  // Check that FB is complete.
-  EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
-            glCheckFramebufferStatus(GL_FRAMEBUFFER));
-
-  GLTestHelper::CheckPixels(0, 0, 1, 1, 0, pixels);
-  EXPECT_TRUE(GL_NO_ERROR == glGetError());
-}
-
-TEST_F(GLCopyTextureCHROMIUMTest, ImmutableTexture) {
-  if (!GLTestHelper::HasExtension("GL_EXT_texture_storage")) {
-    LOG(INFO) << "GL_EXT_texture_storage not supported. Skipping test...";
-    return;
-  }
-
-  uint8 pixels[1 * 4] = {255u, 0u, 0u, 255u};
-
-  glBindTexture(GL_TEXTURE_2D, textures_[0]);
-  glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8_OES, 1, 1);
-  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE,
-                  pixels);
-
-  glBindTexture(GL_TEXTURE_2D, textures_[1]);
-  glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8_OES, 1, 1);
-  glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
-                         textures_[1], 0);
-  EXPECT_TRUE(glGetError() == GL_NO_ERROR);
 
   glCopyTextureCHROMIUM(GL_TEXTURE_2D, textures_[0], textures_[1], 0, GL_RGBA,
                         GL_UNSIGNED_BYTE);