Android: Remove MobileStartup.Toolbar* histograms

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java

Index: chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java b/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java
index c14a41635eda899f8be217492ddc0ed42d782744..0fc5156adab043f10f4ea2da0cd06cf8001169e3 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java
@@ -10,11 +10,8 @@ import android.animation.AnimatorSet;
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.res.ColorStateList;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
-import android.os.SystemClock;
 import android.util.AttributeSet;
 import android.view.Gravity;
 import android.view.MotionEvent;
@@ -48,8 +45,6 @@ import javax.annotation.Nullable;
  * through {@link Toolbar} rather than using this class directly.
  */
 abstract class ToolbarLayout extends FrameLayout implements Toolbar {
-    protected static final int BACKGROUND_TRANSITION_DURATION_MS = 400;
-
     private Invalidator mInvalidator;
 
     private final int[] mTempPosition = new int[2];
@@ -73,8 +68,6 @@ abstract class ToolbarLayout extends FrameLayout implements Toolbar {
     private boolean mNativeLibraryReady;
     private boolean mUrlHasFocus;
 
-    private long mFirstDrawTimeMs;
-
     protected final int mToolbarHeightWithoutShadow;
 
     private boolean mFindInPageToolbarShowing;
@@ -239,12 +232,6 @@ abstract class ToolbarLayout extends FrameLayout implements Toolbar {
     }
 
     @Override
-    protected void onDraw(Canvas canvas) {
-        super.onDraw(canvas);
-        recordFirstDrawTime();
-    }
-
-    @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         if (mProgressBar != null) {
@@ -449,9 +436,9 @@ abstract class ToolbarLayout extends FrameLayout implements Toolbar {
 
     /**
      * Sets/adds a custom action button to the {@link ToolbarLayout} if it is supported.
+     * @param drawable The {@link Drawable} to use as the background for the button.
      * @param description  The content description for the button.
      * @param listener     The {@link OnClickListener} to use for clicks to the button.
-     * @param buttonSource The {@link Bitmap} resource to use as the source for the button.
      */
     public void setCustomActionButton(Drawable drawable, String description,
             OnClickListener listener) { }
@@ -556,20 +543,6 @@ abstract class ToolbarLayout extends FrameLayout implements Toolbar {
     }
 
     /**
-     * Keeps track of the first time the toolbar is drawn.
-     */
-    private void recordFirstDrawTime() {
-        if (mFirstDrawTimeMs == 0) mFirstDrawTimeMs = SystemClock.elapsedRealtime();
-    }
-
-    /**
-     * Returns the elapsed realtime in ms of the time at which first draw for the toolbar occurred.
-     */
-    public long getFirstDrawTime() {
-        return mFirstDrawTimeMs;
-    }
-
-    /**
      * Notified when a navigation to a different page has occurred.
      */
     protected void onNavigatedToDifferentPage() {