Remove ICS support code in chrome/ and components/precache/

chrome/android/java/src/org/chromium/chrome/browser/fullscreen/ChromeFullscreenManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/fullscreen/ChromeFullscreenManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/fullscreen/ChromeFullscreenManager.java b/chrome/android/java/src/org/chromium/chrome/browser/fullscreen/ChromeFullscreenManager.java
index 73e7ef0072a9b4a23ca9571c75def3eb2599b32e..ba1021c6c64a4be58282cf76c243ad132f0c289c 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/fullscreen/ChromeFullscreenManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/fullscreen/ChromeFullscreenManager.java
@@ -9,7 +9,6 @@ import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
 import android.app.Activity;
 import android.content.res.Resources;
-import android.os.Build;
 import android.os.Handler;
 import android.os.Message;
 import android.os.SystemClock;
@@ -51,8 +50,7 @@ public class ChromeFullscreenManager
     // Maximum length of the slide in/out animation of the toolbar (in ms).
     private static final long MAX_ANIMATION_DURATION_MS = 500;
 
-    private static final int MSG_ID_CONTROLS_REQUEST_LAYOUT = 1;
-    private static final int MSG_ID_HIDE_CONTROLS = 2;
+    private static final int MSG_ID_HIDE_CONTROLS = 1;
 
     private final HashSet<Integer> mPersistentControlTokens = new HashSet<Integer>();
 
@@ -166,9 +164,6 @@ public class ChromeFullscreenManager
             ChromeFullscreenManager chromeFullscreenManager = mChromeFullscreenManager.get();
             if (chromeFullscreenManager == null) return;
             switch (msg.what) {
-                case MSG_ID_CONTROLS_REQUEST_LAYOUT:
-                    chromeFullscreenManager.mControlContainer.requestLayout();
-                    break;
                 case MSG_ID_HIDE_CONTROLS:
                     chromeFullscreenManager.update(false);
                     break;
@@ -505,14 +500,6 @@ public class ChromeFullscreenManager
             scheduleVisibilityUpdate();
             if (shouldShowAndroidControls()) mControlContainer.setTranslationY(getControlOffset());
 
-            // In ICS, the toolbar can appear clipped when compositor content is not being drawn
-            // beneath it (at the top of the page, during side swipe).  Requesting a layout clears
-            // up the issue (see crbug.com/172631).
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-                if (!mHandler.hasMessages(MSG_ID_CONTROLS_REQUEST_LAYOUT)) {
-                    mHandler.sendEmptyMessage(MSG_ID_CONTROLS_REQUEST_LAYOUT);
-                }
-            }
             for (int i = 0; i < mListeners.size(); i++) {
                 mListeners.get(i).onVisibleContentOffsetChanged(getVisibleContentOffset());
             }