Lo-Fi snackbar should only be shown for the first q=low response of a page

chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.app.SearchManager;
@@ skipping 69 matching lines @@
 import org.chromium.chrome.browser.fullscreen.ChromeFullscreenManager;
 import org.chromium.chrome.browser.gsa.ContextReporter;
 import org.chromium.chrome.browser.gsa.GSAServiceClient;
 import org.chromium.chrome.browser.gsa.GSAState;
 import org.chromium.chrome.browser.help.HelpAndFeedback;
 import org.chromium.chrome.browser.infobar.InfoBarContainer;
 import org.chromium.chrome.browser.init.AsyncInitializationActivity;
 import org.chromium.chrome.browser.metrics.LaunchMetrics;
 import org.chromium.chrome.browser.metrics.StartupMetrics;
 import org.chromium.chrome.browser.metrics.UmaSessionStats;
-import org.chromium.chrome.browser.net.spdyproxy.DataReductionProxySettings;
 import org.chromium.chrome.browser.nfc.BeamController;
 import org.chromium.chrome.browser.nfc.BeamProvider;
 import org.chromium.chrome.browser.offlinepages.OfflinePageUtils;
 import org.chromium.chrome.browser.omaha.UpdateMenuItemHelper;
 import org.chromium.chrome.browser.pageinfo.WebsiteSettingsPopup;
 import org.chromium.chrome.browser.partnercustomizations.PartnerBrowserCustomizations;
 import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.preferences.PreferencesLauncher;
 import org.chromium.chrome.browser.printing.TabPrinter;
@@ skipping 353 matching lines @@
             mReaderModeManager = new ReaderModeManager(getTabModelSelector(), this);
             if (mToolbarManager != null) {
                 mToolbarManager.addFindToolbarObserver(
                         mReaderModeManager.getFindToolbarObserver());
             }
         }
 
         TraceEvent.end("ChromeActivity:CompositorInitialization");
     }
 
+    public void showLoFiPopup(Tab tab) {
+        if (tab.isHidden()) {
+            TabObserver tabObserver = new EmptyTabObserver() {
+                @Override
+                public void onShown(Tab tab) {
+                    mLoFiBarPopupController.showLoFiBar(tab);
+                    tab.removeObserver(this);
+                }
+            };
+            tab.addObserver(tabObserver);
+            return;
+        }
+        mLoFiBarPopupController.showLoFiBar(tab);
+    }
+
     /**
      * Sets the {@link TabModelSelector} owned by this {@link ChromeActivity}.
      * @param tabModelSelector A {@link TabModelSelector} instance.
      */
     protected void setTabModelSelector(TabModelSelector tabModelSelector) {
         mTabModelSelector = tabModelSelector;
 
         if (mTabModelSelectorTabObserver != null) mTabModelSelectorTabObserver.destroy();
         mTabModelSelectorTabObserver = new TabModelSelectorTabObserver(tabModelSelector) {
             @Override
             public void didFirstVisuallyNonEmptyPaint(Tab tab) {
                 if (DataUseTabUIManager.checkAndResetDataUseTrackingStarted(tab)) {
                     mDataUseSnackbarController.showDataUseTrackingStartedBar();
                 } else if (DataUseTabUIManager.getOptedOutOfDataUseDialog(getApplicationContext())
                         && DataUseTabUIManager.checkAndResetDataUseTrackingEnded(tab)) {
                     mDataUseSnackbarController.showDataUseTrackingEndedBar();
                 }
-
-                if (!tab.isNativePage() && !tab.isIncognito()
-                        && DataReductionProxySettings.getInstance().wasLoFiModeActiveOnMainFrame()
-                        && DataReductionProxySettings.getInstance().canUseDataReductionProxy(
-                                tab.getUrl())) {
-                    if (tab.isHidden()) {
-                        TabObserver tabObserver = new EmptyTabObserver() {
-                            @Override
-                            public void onShown(Tab tab) {
-                                mLoFiBarPopupController.showLoFiBar(tab);
-                                tab.removeObserver(this);
-                            }
-                        };
-                        tab.addObserver(tabObserver);
-                        return;
-                    }
-                    mLoFiBarPopupController.showLoFiBar(tab);
-                }
             }
 
             @Override
             public void onShown(Tab tab) {
                 setStatusBarColor(tab, tab.getThemeColor());
             }
 
             @Override
             public void onHidden(Tab tab) {
                 mLoFiBarPopupController.dismissLoFiBar();
@@ skipping 1097 matching lines @@
     public static int getThemeId() {
         boolean useLowEndTheme =
                 SysUtils.isLowEndDevice() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
         return (useLowEndTheme ? R.style.MainTheme_LowEnd : R.style.MainTheme);
     }
 
     private void setLowEndTheme() {
         if (getThemeId() == R.style.MainTheme_LowEnd) setTheme(R.style.MainTheme_LowEnd);
     }
 }