Makes linux honor instant_is_active when instant temporarily hides.

chrome/browser/tab_contents/tab_contents.cc

Index: chrome/browser/tab_contents/tab_contents.cc
diff --git a/chrome/browser/tab_contents/tab_contents.cc b/chrome/browser/tab_contents/tab_contents.cc
index 7769d34661382507d1813da9d0f4815bd9416f56..ffa67b381aa9849bfe69d71764bb15dbec0d7a94 100644
--- a/chrome/browser/tab_contents/tab_contents.cc
+++ b/chrome/browser/tab_contents/tab_contents.cc
@@ -799,11 +799,11 @@ void TabContents::DidBecomeSelected() {
   last_selected_time_ = base::TimeTicks::Now();
 }
 
-void TabContents::FadeForInstant() {
+void TabContents::FadeForInstant(bool animate) {
   RenderWidgetHostView* rwhv = GetRenderWidgetHostView();
   SkColor whitish = SkColorSetARGB(192, 255, 255, 255);
   if (rwhv)
-    rwhv->SetVisuallyDeemphasized(&whitish, true);
+    rwhv->SetVisuallyDeemphasized(&whitish, animate);
 }
 
 void TabContents::CancelInstantFade() {