Android: UMA histogram for coldstart-to-commit

chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellApplication.java

Index: chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellApplication.java
diff --git a/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellApplication.java b/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellApplication.java
index 9f0d266531540a5bd27c0166149bf8ddaafc5b81..35b429171af2313a87a773ffc0518640a6390f80 100644
--- a/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellApplication.java
+++ b/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellApplication.java
@@ -52,6 +52,10 @@ public class ChromeShellApplication extends ChromiumApplication {
         UmaUtils.recordMainEntryPointTime();
         super.onCreate();
 
+        // Assume that application start always leads to meaningful UMA startup metrics. This is not
+        // the case for the official Chrome on Android.
+        UmaUtils.setRunningApplicationStart(true);
+
         mObservers = new ArrayList<ChromeShellApplicationObserver>();
 
         // Initialize the invalidations ID, just like we would in the downstream code.