Linux: refactor zygote support

chrome/app/chrome_main_uitest.cc

Index: chrome/app/chrome_main_uitest.cc
diff --git a/chrome/app/chrome_main_uitest.cc b/chrome/app/chrome_main_uitest.cc
index 5ce05c29818bfb418cc41ff015daa7e636b6142c..f22975124725512b0e7818fba330cc118aecbb69 100644
--- a/chrome/app/chrome_main_uitest.cc
+++ b/chrome/app/chrome_main_uitest.cc
@@ -18,9 +18,14 @@ TEST_F(ChromeMainTest, AppLaunch) {
   if (UITest::in_process_renderer()) {
     EXPECT_EQ(1, UITest::GetBrowserProcessCount());
   } else {
+#if defined(OS_LINUX)
+    // On Linux we'll have three processes: browser, renderer and zygote.
+    EXPECT_EQ(3, UITest::GetBrowserProcessCount());
+#else
     // We should have two instances of the browser process alive -
     // one is the Browser and the other is the Renderer.
     EXPECT_EQ(2, UITest::GetBrowserProcessCount());
+#endif
   }
 }