Reland of Revert of gpu: introduce glCopySubTextureCHROMIUM (patchset #1 id:1 of https://codereview…

gpu/command_buffer/client/gles2_implementation_impl_autogen.h

Index: gpu/command_buffer/client/gles2_implementation_impl_autogen.h
diff --git a/gpu/command_buffer/client/gles2_implementation_impl_autogen.h b/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
index 641efde39ff27a48e62c58c04100c6552459dcb6..98447bf54cfc2611df63468ee6250723886c0f8d 100644
--- a/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
+++ b/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
@@ -3108,18 +3108,32 @@ void GLES2Implementation::TexImageIOSurface2DCHROMIUM(GLenum target,
 void GLES2Implementation::CopyTextureCHROMIUM(GLenum target,
                                               GLenum source_id,
                                               GLenum dest_id,
-                                              GLint level,
                                               GLint internalformat,
                                               GLenum dest_type) {
   GPU_CLIENT_SINGLE_THREAD_CHECK();
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glCopyTextureCHROMIUM("
                      << GLES2Util::GetStringEnum(target) << ", "
                      << GLES2Util::GetStringEnum(source_id) << ", "
-                     << GLES2Util::GetStringEnum(dest_id) << ", " << level
-                     << ", " << internalformat << ", "
+                     << GLES2Util::GetStringEnum(dest_id) << ", "
+                     << internalformat << ", "
                      << GLES2Util::GetStringPixelType(dest_type) << ")");
-  helper_->CopyTextureCHROMIUM(target, source_id, dest_id, level,
-                               internalformat, dest_type);
+  helper_->CopyTextureCHROMIUM(target, source_id, dest_id, internalformat,
+                               dest_type);
+  CheckGLError();
+}
+
+void GLES2Implementation::CopySubTextureCHROMIUM(GLenum target,
+                                                 GLenum source_id,
+                                                 GLenum dest_id,
+                                                 GLint xoffset,
+                                                 GLint yoffset) {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glCopySubTextureCHROMIUM("
+                     << GLES2Util::GetStringEnum(target) << ", "
+                     << GLES2Util::GetStringEnum(source_id) << ", "
+                     << GLES2Util::GetStringEnum(dest_id) << ", " << xoffset
+                     << ", " << yoffset << ")");
+  helper_->CopySubTextureCHROMIUM(target, source_id, dest_id, xoffset, yoffset);
   CheckGLError();
 }