Move components/memory_coordinator -> content/

components/memory_coordinator/browser/memory_coordinator.cc

Index: components/memory_coordinator/browser/memory_coordinator.cc
diff --git a/components/memory_coordinator/browser/memory_coordinator.cc b/components/memory_coordinator/browser/memory_coordinator.cc
deleted file mode 100644
index e0f5ff40d618d6168cc47556a4947ffd65c2d93b..0000000000000000000000000000000000000000
--- a/components/memory_coordinator/browser/memory_coordinator.cc
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "components/memory_coordinator/browser/memory_coordinator.h"
-
-#include "base/memory/memory_coordinator_client_registry.h"
-#include "components/memory_coordinator/common/memory_coordinator_features.h"
-
-namespace memory_coordinator {
-
-// The implementation of MemoryCoordinatorHandle. See memory_coordinator.mojom
-// for the role of this class.
-class MemoryCoordinatorHandleImpl : public mojom::MemoryCoordinatorHandle {
- public:
-  MemoryCoordinatorHandleImpl(mojom::MemoryCoordinatorHandleRequest request)
-      : binding_(this, std::move(request)) {
-  }
-
-  // mojom::MemoryCoordinatorHandle:
-  void AddChild(mojom::ChildMemoryCoordinatorPtr child) override {
-    DCHECK(!child_.is_bound());
-    child_ = std::move(child);
-  }
-
-  mojom::ChildMemoryCoordinatorPtr& child() { return child_; }
-  mojo::Binding<mojom::MemoryCoordinatorHandle>& binding() { return binding_; }
-
- private:
-  mojom::ChildMemoryCoordinatorPtr child_;
-  mojo::Binding<mojom::MemoryCoordinatorHandle> binding_;
-
-  DISALLOW_COPY_AND_ASSIGN(MemoryCoordinatorHandleImpl);
-};
-
-// static
-MemoryCoordinator* MemoryCoordinator::GetInstance() {
-  if (!IsEnabled())
-    return nullptr;
-  return base::Singleton<MemoryCoordinator,
-                         base::LeakySingletonTraits<MemoryCoordinator>>::get();
-}
-
-MemoryCoordinator::MemoryCoordinator() {}
-
-MemoryCoordinator::~MemoryCoordinator() {}
-
-void MemoryCoordinator::CreateHandle(
-    int render_process_id,
-    mojom::MemoryCoordinatorHandleRequest request) {
-  std::unique_ptr<MemoryCoordinatorHandleImpl> handle(
-      new MemoryCoordinatorHandleImpl(std::move(request)));
-  handle->binding().set_connection_error_handler(
-      base::Bind(&MemoryCoordinator::OnConnectionError, base::Unretained(this),
-                 render_process_id));
-  CreateChildInfoMapEntry(render_process_id, std::move(handle));
-}
-
-size_t MemoryCoordinator::NumChildrenForTesting() {
-  return children_.size();
-}
-
-bool MemoryCoordinator::SetMemoryState(int render_process_id,
-                                       mojom::MemoryState memory_state) {
-  // Can't set an invalid memory state.
-  if (memory_state == mojom::MemoryState::UNKNOWN)
-    return false;
-
-  // Can't send a message to a child that doesn't exist.
-  auto iter = children_.find(render_process_id);
-  if (iter == children_.end())
-    return false;
-
-  // A nop doesn't need to be sent, but is considered successful.
-  if (iter->second.memory_state == memory_state)
-    return true;
-
-  // Update the internal state and send the message.
-  iter->second.memory_state = memory_state;
-  iter->second.handle->child()->OnStateChange(memory_state);
-  return true;
-}
-
-mojom::MemoryState MemoryCoordinator::GetMemoryState(
-    int render_process_id) const {
-  auto iter = children_.find(render_process_id);
-  if (iter == children_.end())
-    return mojom::MemoryState::UNKNOWN;
-  return iter->second.memory_state;
-}
-
-void MemoryCoordinator::AddChildForTesting(
-    int dummy_render_process_id, mojom::ChildMemoryCoordinatorPtr child) {
-  mojom::MemoryCoordinatorHandlePtr mch;
-  auto request = mojo::GetProxy(&mch);
-  std::unique_ptr<MemoryCoordinatorHandleImpl> handle(
-      new MemoryCoordinatorHandleImpl(std::move(request)));
-  handle->AddChild(std::move(child));
-  CreateChildInfoMapEntry(dummy_render_process_id, std::move(handle));
-}
-
-void MemoryCoordinator::OnConnectionError(int render_process_id) {
-  children_.erase(render_process_id);
-}
-
-void MemoryCoordinator::CreateChildInfoMapEntry(
-    int render_process_id,
-    std::unique_ptr<MemoryCoordinatorHandleImpl> handle) {
-  auto& child_info = children_[render_process_id];
-  // Process always start with normal memory state.
-  // TODO(chrisha): Consider having memory state be a startup parameter of
-  // child processes, allowing them to be launched in a restricted state.
-  child_info.memory_state = mojom::MemoryState::NORMAL;
-  child_info.handle = std::move(handle);
-}
-
-MemoryCoordinator::ChildInfo::ChildInfo() {}
-
-MemoryCoordinator::ChildInfo::ChildInfo(const ChildInfo& rhs) {
-  // This is a nop, but exists for compatibility with STL containers.
-}
-
-MemoryCoordinator::ChildInfo::~ChildInfo() {}
-
-}  // namespace memory_coordinator