Clean up session crashed bubble field trial & switches.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 36b6d48046a2c14c0d9c31a3c0636104796fc7ef..1b71267994d71abdb720c26240f1cc67e011cb97 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -288,9 +288,6 @@ const char kDisableQuic[] = "disable-quic";
 // This only has an effect if QUIC protocol is enabled.
 const char kDisableQuicPortSelection[] = "disable-quic-port-selection";
 
-// Disables using bubbles for session restore request.
-const char kDisableSessionCrashedBubble[] = "disable-session-crashed-bubble";
-
 // Disable settings in a separate browser window per profile
 // (see SettingsWindowEnabled() below).
 const char kDisableSettingsWindow[]          = "disable-settings-window";
@@ -457,9 +454,6 @@ const char kEnableQuic[] = "enable-quic";
 // This only has an effect if the QUIC protocol is enabled.
 const char kEnableQuicPortSelection[] = "enable-quic-port-selection";
 
-// Enables using bubbles for session restore request instead of infobars.
-const char kEnableSessionCrashedBubble[] = "enable-session-crashed-bubble";
-
 // Enable settings in a separate browser window per profile
 // (see SettingsWindowEnabled() below).
 const char kEnableSettingsWindow[]           = "enable-settings-window";