Index: chrome/browser/net/client_hints.cc |
diff --git a/chrome/browser/net/client_hints.cc b/chrome/browser/net/client_hints.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c3186dc35f564caee58685e66b29c3901556b8b3 |
--- /dev/null |
+++ b/chrome/browser/net/client_hints.cc |
@@ -0,0 +1,50 @@ |
+// Copyright (c) 2012 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 "chrome/browser/net/client_hints.h" |
+ |
+#include "base/bind.h" |
+#include "base/stringprintf.h" |
+#include "content/public/browser/browser_thread.h" |
+#include "ui/gfx/screen.h" |
+ |
+namespace { |
+ |
+void FetchScreenInfoOnUIThread(ClientHints::ScreenInfo* info) { |
+ DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); |
+ gfx::Display display = gfx::Screen::GetNativeScreen()->GetPrimaryDisplay(); |
+ info->width = display.GetSizeInPixel().width(); |
+ info->height = display.GetSizeInPixel().height(); |
+ info->pixel_ratio = display.device_scale_factor(); |
+} |
+ |
+} // namespace |
+ |
+ClientHints::ClientHints() : screen_hints_(""), weak_ptr_factory_(this) { |
Ryan Sleevi
2013/02/26 18:26:16
You will need to rewrite this (to suppress an MSVC
bengr
2013/02/26 18:41:16
Done.
|
+} |
+ |
+ClientHints::~ClientHints() { |
+} |
+ |
+bool ClientHints::RetrieveScreenInfo() { |
Ryan Sleevi
2013/02/26 18:26:16
DCHECK(content::BrowserThread::CurrentlyOn(content
bengr
2013/02/26 18:41:16
Done.
|
+ ClientHints::ScreenInfo* info = new ClientHints::ScreenInfo(); |
+ return content::BrowserThread::PostTaskAndReply( |
+ content::BrowserThread::UI, |
+ FROM_HERE, |
+ base::Bind(&FetchScreenInfoOnUIThread, info), |
+ base::Bind(&ClientHints::UpdateScreenInfo, weak_ptr_factory_.GetWeakPtr(), |
+ base::Owned(info))); |
Ryan Sleevi
2013/02/26 18:26:16
nit: indent to (, following function-call indentin
bengr
2013/02/26 18:41:16
Done.
|
+} |
+ |
+std::string ClientHints::GetScreenInfoHints() { |
+ return screen_hints_; |
+} |
+ |
+void ClientHints::UpdateScreenInfo(ClientHints::ScreenInfo* info) { |
+ if (info->height > 0 && info->width > 0 && info->pixel_ratio > 0.0) |
Ryan Sleevi
2013/02/26 18:26:16
nit: braces here, for a multi-line body (even if i
bengr
2013/02/26 18:41:16
Done.
|
+ screen_hints_ = base::StringPrintf( |
+ "dh=%d, dw=%d, dpr=%0.3g", |
+ info->height, info->width, info->pixel_ratio); |
+} |
+ |