AndroidVDA by using Android's MediaCodec API.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 5b0fc8f9506f29c0995e92b06b0c2fb54e245211..97a5db46e9d944f03b225c5a5a7e8460a04770b8 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -9605,31 +9605,15 @@ void GLES2DecoderImpl::DoCopyTextureCHROMIUM(
     texture_manager()->SetLevelCleared(dest_info, GL_TEXTURE_2D, level, true);
   }
 
-  clear_state_dirty_ = true;
-  glViewport(0, 0, source_width, source_height);
-  copy_texture_CHROMIUM_->DoCopyTexture(target, source_info->service_id(),
+  copy_texture_CHROMIUM_->DoCopyTexture(this,
+                                        source_info->target(),
+                                        dest_info->target(),
+                                        source_info->service_id(),
                                         dest_info->service_id(), level,
+                                        source_width, source_height,
                                         unpack_flip_y_,
                                         unpack_premultiply_alpha_,
                                         unpack_unpremultiply_alpha_);
-  glViewport(
-      state_.viewport_x, state_.viewport_y,
-      state_.viewport_width, state_.viewport_height);
-
-  // Restore all of the state touched by the extension.
-  if (state_.current_program)
-    glUseProgram(state_.current_program->service_id());
-  else
-    glUseProgram(0);
-
-  RestoreCurrentFramebufferBindings();
-  RestoreCurrentTexture2DBindings();
-  RestoreStateForAttrib(
-      CopyTextureCHROMIUMResourceManager::kVertexPositionAttrib);
-  RestoreStateForAttrib(
-      CopyTextureCHROMIUMResourceManager::kVertexTextureAttrib);
-
-  ApplyDirtyState();
 }
 
 static GLenum ExtractTypeFromStorageFormat(GLenum internalformat) {