Shape Detection: Implement FaceDetection on Mac as out-of-process service

content/child/blink_platform_impl.cc

 // Copyright 2014 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 "content/child/blink_platform_impl.h"
 
 #include <math.h>
 
 #include <memory>
 #include <vector>
@@ skipping 30 matching lines @@
 #include "content/child/content_child_helpers.h"
 #include "content/child/notifications/notification_dispatcher.h"
 #include "content/child/notifications/notification_manager.h"
 #include "content/child/push_messaging/push_dispatcher.h"
 #include "content/child/push_messaging/push_provider.h"
 #include "content/child/thread_safe_sender.h"
 #include "content/child/web_url_loader_impl.h"
 #include "content/child/web_url_request_util.h"
 #include "content/child/worker_thread_registry.h"
 #include "content/public/common/content_client.h"
+#include "content/public/common/service_manager_connection.h"
 #include "net/base/net_errors.h"
+#include "services/service_manager/public/cpp/connector.h"
+#include "services/service_manager/public/interfaces/connector.mojom.h"
 #include "third_party/WebKit/public/platform/WebData.h"
 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 #include "third_party/WebKit/public/platform/WebSecurityOrigin.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/platform/scheduler/child/webthread_impl_for_worker_scheduler.h"
 #include "ui/base/layout.h"
 #include "ui/events/gestures/blink/web_gesture_curve_impl.h"
 #include "ui/events/keycodes/dom/keycode_converter.h"
 
@@ skipping 744 matching lines @@
 long long BlinkPlatformImpl::databaseGetSpaceAvailableForOrigin(
     const blink::WebSecurityOrigin& origin) {
   return 0;
 }
 
 bool BlinkPlatformImpl::databaseSetFileSize(
     const blink::WebString& vfs_file_name, long long size) {
   return false;
 }
 
+service_manager::mojom::blink::ConnectorPtr
+BlinkPlatformImpl::serviceConnector() {

[yzshen1, 2016/12/01 21:28:26]

If such changes are from another CL Foo. You could set this CL (let's call it
Bar) to depend on Foo.

I usually do:

git new-branch branch_for_foo
git cl patch CL_number_for_foo
git checkout -b branch_for_bar
git branch -u branch_for_foo
// develop your change on branch_for_bar
git cl upload

[xianglu, 2016/12/02 18:11:24]

Thanks for the instruction!

+  service_manager::mojom::blink::ConnectorPtr blink_ptr;
+  if (!ChildThreadImpl::current())
+    return blink_ptr;
+
+  service_manager::mojom::ConnectorPtr chromium_ptr;
+  ChildThreadImpl::current()
+      ->GetServiceManagerConnection()
+      ->GetConnector()
+      ->BindRequest(mojo::GetProxy(&chromium_ptr));
+
+  // Pass the pipe from |chromium_ptr| to |blink_ptr|.
+  service_manager::mojom::ConnectorPtrInfo chromium_ptr_info =
+      chromium_ptr.PassInterface();
+  DCHECK(chromium_ptr_info.is_valid());
+  blink_ptr.Bind(service_manager::mojom::blink::ConnectorPtrInfo(
+      chromium_ptr_info.PassHandle(), chromium_ptr_info.version()));
+  DCHECK(blink_ptr.is_bound());
+
+  return blink_ptr;
+}
+
 blink::WebString BlinkPlatformImpl::signedPublicKeyAndChallengeString(
     unsigned key_size_index,
     const blink::WebString& challenge,
     const blink::WebURL& url,
     const blink::WebURL& top_origin) {
   return blink::WebString("");
 }
 
 size_t BlinkPlatformImpl::actualMemoryUsageMB() {
   return GetMemoryUsageKB() >> 10;
@@ skipping 48 matching lines @@
   return WebString::fromUTF8(ui::KeycodeConverter::DomKeyToKeyString(
       static_cast<ui::DomKey>(dom_key)));
 }
 
 int BlinkPlatformImpl::domKeyEnumFromString(const WebString& key_string) {
   return static_cast<int>(
       ui::KeycodeConverter::KeyStringToDomKey(key_string.utf8()));
 }
 
 }  // namespace content