From cac397373193c1ec9211df684ebb917d1da4cacc Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Tue, 31 Dec 2013 14:40:42 +0800
Subject: [PATCH] Flip the y axis in CapturePage API, fixes #148.

---
 browser/native_window.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/browser/native_window.cc b/browser/native_window.cc
index 2411464a723c..8aa0a266e3aa 100644
--- a/browser/native_window.cc
+++ b/browser/native_window.cc
@@ -213,8 +213,11 @@ base::ProcessHandle NativeWindow::GetRenderProcessHandle() {
 
 void NativeWindow::CapturePage(const gfx::Rect& rect,
                                const CapturePageCallback& callback) {
+  gfx::Rect flipped_y_rect = rect;
+  flipped_y_rect.set_y(-rect.y());
+
   GetWebContents()->GetRenderViewHost()->CopyFromBackingStore(
-      rect,
+      flipped_y_rect,
       gfx::Size(),
       base::Bind(&NativeWindow::OnCapturePageDone,
                  weak_factory_.GetWeakPtr(),