[Android] Omnibox Placeholder Experiment

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 bd10931ff8f54268692cc63038f04fa476970a46..8a9ced87e6bcf37df4767968aafc7ede085a32de 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -921,6 +921,10 @@ const char kMarketUrlForTesting[] = "market-url-for-testing";
 // Switch to an existing tab for a suggestion opened from the New Tab Page.
 const char kNtpSwitchToExistingTab[] = "ntp-switch-to-existing-tab";
 
+// Specifies a particular hint text to show on omnibox url bar.
+const char kOmniboxPlaceholderExperimentSwitch[] =
+    "omnibox-placeholder-experiment";
+
 // Specifies Android phone page loading progress bar animation.
 const char kProgressBarAnimation[]          = "progress-bar-animation";