Fix some grammar in chrome/browser/ui/views/

chrome/browser/ui/views/frame/browser_view.cc

Index: chrome/browser/ui/views/frame/browser_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_view.cc b/chrome/browser/ui/views/frame/browser_view.cc
index 640babf3dcede1cacfa9c64bf57def02d39e3f1d..46e5a3355d68927293df8ab914c7f5bf5bf7ad62 100644
--- a/chrome/browser/ui/views/frame/browser_view.cc
+++ b/chrome/browser/ui/views/frame/browser_view.cc
@@ -811,7 +811,7 @@ void BrowserView::EnterFullscreen(
 #if defined(OS_WIN) || defined(USE_AURA)
   ProcessFullscreen(true, url, bubble_type);
 #else
-  // On Linux/gtk changing fullscreen is async. Ask the window to change it's
+  // On Linux/gtk changing fullscreen is async. Ask the window to change its
   // fullscreen state, and when done invoke ProcessFullscreen.
   fullscreen_request_.pending = true;
   fullscreen_request_.url = url;
@@ -828,7 +828,7 @@ void BrowserView::ExitFullscreen() {
   ProcessFullscreen(false, GURL(), FEB_TYPE_NONE);
 #else
   fullscreen_request_.pending = false;
-  // On Linux changing fullscreen is async. Ask the window to change it's
+  // On Linux changing fullscreen is async. Ask the window to change its
   // fullscreen state, and when done invoke ProcessFullscreen.
   frame_->SetFullscreen(false);
 #endif