Merge java_staging/src into java/src.

chrome/android/java_staging/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java

Index: chrome/android/java_staging/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java
diff --git a/chrome/android/java_staging/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java b/chrome/android/java_staging/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java
deleted file mode 100644
index 8099d1beabc9bfdcd8c86cd79430628b08d24ae0..0000000000000000000000000000000000000000
--- a/chrome/android/java_staging/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java
+++ /dev/null
@@ -1,1248 +0,0 @@
-// 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.contextualsearch;
-
-import android.app.Activity;
-import android.os.Handler;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.ViewTreeObserver;
-import android.view.ViewTreeObserver.OnGlobalFocusChangeListener;
-
-import org.chromium.base.ActivityState;
-import org.chromium.base.ApplicationStatus;
-import org.chromium.base.ApplicationStatus.ActivityStateListener;
-import org.chromium.base.CalledByNative;
-import org.chromium.base.SysUtils;
-import org.chromium.base.VisibleForTesting;
-import org.chromium.chrome.R;
-import org.chromium.chrome.browser.ChromeActivity;
-import org.chromium.chrome.browser.Tab;
-import org.chromium.chrome.browser.WebContentsFactory;
-import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchControl;
-import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchPanel.PanelState;
-import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchPanel.StateChangeReason;
-import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchPanelDelegate;
-import org.chromium.chrome.browser.contextualsearch.ContextualSearchSelectionController.SelectionType;
-import org.chromium.chrome.browser.device.DeviceClassManager;
-import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler;
-import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler.OverrideUrlLoadingResult;
-import org.chromium.chrome.browser.externalnav.ExternalNavigationParams;
-import org.chromium.chrome.browser.gsa.GSAContextDisplaySelection;
-import org.chromium.chrome.browser.infobar.InfoBarContainer;
-import org.chromium.chrome.browser.preferences.PrefServiceBridge;
-import org.chromium.chrome.browser.tab.TabRedirectHandler;
-import org.chromium.chrome.browser.tabmodel.EmptyTabModelObserver;
-import org.chromium.chrome.browser.tabmodel.TabModel;
-import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
-import org.chromium.chrome.browser.tabmodel.TabModelObserver;
-import org.chromium.chrome.browser.tabmodel.TabModelSelector;
-import org.chromium.chrome.browser.tabmodel.TabModelSelectorTabObserver;
-import org.chromium.components.navigation_interception.InterceptNavigationDelegate;
-import org.chromium.components.navigation_interception.NavigationParams;
-import org.chromium.components.web_contents_delegate_android.WebContentsDelegateAndroid;
-import org.chromium.content.browser.ContentView;
-import org.chromium.content.browser.ContentViewCore;
-import org.chromium.content.browser.ContextualSearchClient;
-import org.chromium.content_public.browser.GestureStateListener;
-import org.chromium.content_public.browser.LoadUrlParams;
-import org.chromium.content_public.browser.WebContents;
-import org.chromium.content_public.browser.WebContentsObserver;
-import org.chromium.content_public.common.TopControlsState;
-import org.chromium.ui.base.WindowAndroid;
-
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.util.regex.Pattern;
-
-import javax.annotation.Nullable;
-
-
-/**
- * Manager for the Contextual Search feature.
- * This class keeps track of the status of Contextual Search and coordinates the control
- * with the layout.
- */
-public class ContextualSearchManager extends ContextualSearchObservable
-        implements ContextualSearchManagementDelegate,
-                ContextualSearchNetworkCommunicator, ContextualSearchSelectionHandler,
-                ContextualSearchClient, ActivityStateListener {
-
-    private static final String TAG = "ContextualSearch";
-
-    private static final String CONTAINS_WORD_PATTERN = "(\\w|\\p{L}|\\p{N})+";
-
-    // Max selection length must be limited or the entire request URL can go past the 2K limit.
-    private static final int MAX_SELECTION_LENGTH = 100;
-
-    private static final boolean ALWAYS_USE_RESOLVED_SEARCH_TERM = true;
-    private static final boolean NEVER_USE_RESOLVED_SEARCH_TERM = false;
-
-    private static final String INTENT_URL_PREFIX = "intent:";
-
-    // The animation duration of a URL being promoted to a tab when triggered by an
-    // intercept navigation. This is faster than the standard tab promotion animation
-    // so that it completes before the navigation.
-    private static final long INTERCEPT_NAVIGATION_PROMOTION_ANIMATION_DURATION_MS = 40;
-
-    // We blacklist this URL because malformed URLs may bring up this page.
-    private static final String BLACKLISTED_URL = "about:blank";
-
-    private final ContextualSearchSelectionController mSelectionController;
-    private final Pattern mContainsWordPattern;
-    private final ChromeActivity mActivity;
-    private ViewGroup mParentView;
-    private final ViewTreeObserver.OnGlobalFocusChangeListener mOnFocusChangeListener;
-
-    private final WindowAndroid mWindowAndroid;
-    private ContentViewCore mSearchContentViewCore;
-    private WebContentsObserver mSearchWebContentsObserver;
-    private final WebContentsDelegateAndroid mWebContentsDelegate;
-    private ContextualSearchContentViewDelegate mSearchContentViewDelegate;
-    private final ContextualSearchTabPromotionDelegate mTabPromotionDelegate;
-    private TabModelSelectorTabObserver mTabModelSelectorTabObserver;
-    private TabModelObserver mTabModelObserver;
-    private boolean mIsSearchContentViewShowing;
-    private boolean mDidLoadResolvedSearchRequest;
-    private long mLoadedSearchUrlTimeMs;
-    // TODO(donnd): consider changing this member's name to indicate "opened" instead of "seen".
-    private boolean mWereSearchResultsSeen;
-    private boolean mWereInfoBarsHidden;
-    private boolean mDidLoadAnyUrl;
-    private boolean mDidPromoteSearchNavigation;
-    private boolean mDidBasePageLoadJustStart;
-    private boolean mWasActivatedByTap;
-    private boolean mIsInitialized;
-
-    private boolean mIsShowingPromo;
-    private boolean mDidLogPromoOutcome;
-
-    /**
-     * Whether contextual search manager is currently promoting a tab. We should be ignoring hide
-     * requests when mIsPromotingTab is set to true.
-     */
-    private boolean mIsPromotingToTab;
-
-    private ContextualSearchNetworkCommunicator mNetworkCommunicator;
-    private ContextualSearchPanelDelegate mSearchPanelDelegate;
-
-    // TODO(pedrosimonetti): also store selected text, surroundings, url, bounding rect of selected
-    // text, and make sure that all states are cleared when starting a new contextual search to
-    // avoid having the values in a funky state.
-    private ContextualSearchRequest mSearchRequest;
-
-    // The native manager associated with this object.
-    private long mNativeContextualSearchManagerPtr;
-
-    private TabRedirectHandler mTabRedirectHandler;
-
-    /**
-     * The delegate that is notified when the Search Panel ContentViewCore is ready to be rendered.
-     */
-    public interface ContextualSearchContentViewDelegate {
-        /**
-         * Sets the {@code ContentViewCore} associated to the Contextual Search Panel.
-         * @param contentViewCore Reference to the ContentViewCore.
-         */
-        void setContextualSearchContentViewCore(ContentViewCore contentViewCore);
-
-        /**
-         * Releases the {@code ContentViewCore} associated to the Contextual Search Panel.
-         */
-        void releaseContextualSearchContentViewCore();
-    }
-
-    /**
-     * The delegate that is responsible for promoting a {@link ContentViewCore} to a {@link Tab}
-     * when necessary.
-     */
-    public interface ContextualSearchTabPromotionDelegate {
-        /**
-         * Called when {@code searchContentViewCore} should be promoted to a {@link Tab}.
-         * @param searchContentViewCore The {@link ContentViewCore} to promote.
-         * @return                      Whether or not {@code searchContentViewCore}'s ownership
-         *                              was transferred to the new {@link Tab} or not.  If
-         *                              {@code false}, this {@link ContentViewCore} might be
-         *                              destroyed after this call.
-         */
-        boolean createContextualSearchTab(ContentViewCore searchContentViewCore);
-    }
-
-    /**
-     * Constructs the manager for the given activity, and will attach views to the given parent.
-     * @param activity             The {@code ChromeActivity} in use.
-     * @param windowAndroid        The {@code WindowAndroid} associated with Chrome.
-     * @param tabPromotionDelegate The {@link ContextualSearchTabPromotionDelegate} that is
-     *                             responsible for building tabs from contextual search
-     *                             {@link ContentViewCore}s.
-     */
-    public ContextualSearchManager(ChromeActivity activity, WindowAndroid windowAndroid,
-            ContextualSearchTabPromotionDelegate tabPromotionDelegate) {
-        super(activity);
-        mActivity = activity;
-        mWindowAndroid = windowAndroid;
-        mTabPromotionDelegate = tabPromotionDelegate;
-        mContainsWordPattern = Pattern.compile(CONTAINS_WORD_PATTERN);
-
-        mSelectionController = new ContextualSearchSelectionController(activity, this);
-
-        mWebContentsDelegate = new WebContentsDelegateAndroid() {
-            @Override
-            public void onLoadStarted() {
-                super.onLoadStarted();
-                mSearchPanelDelegate.onLoadStarted();
-            }
-
-            @Override
-            public void onLoadStopped() {
-                super.onLoadStopped();
-                mSearchPanelDelegate.onLoadStopped();
-            }
-
-            @Override
-            public void onLoadProgressChanged(int progress) {
-                super.onLoadProgressChanged(progress);
-                mSearchPanelDelegate.onLoadProgressChanged(progress);
-            }
-        };
-
-        final View controlContainer = mActivity.findViewById(R.id.control_container);
-        mOnFocusChangeListener = new OnGlobalFocusChangeListener() {
-            @Override
-            public void onGlobalFocusChanged(View oldFocus, View newFocus) {
-                if (controlContainer != null && controlContainer.hasFocus()) {
-                    hideContextualSearch(StateChangeReason.UNKNOWN);
-                }
-            }
-        };
-
-        mTabModelObserver = new EmptyTabModelObserver() {
-            @Override
-            public void didAddTab(Tab tab, TabLaunchType type) {
-                // If we're in the process of promoting this tab, just return and don't mess with
-                // this state.
-                if (tab.getContentViewCore() == mSearchContentViewCore) return;
-                hideContextualSearch(StateChangeReason.UNKNOWN);
-            }
-        };
-    }
-
-    /**
-     * Initializes this manager.  Must be called before {@link #getContextualSearchControl()}.
-     * @param parentView The parent view to attach Contextual Search UX to.
-     */
-    public void initialize(ViewGroup parentView) {
-        mParentView = parentView;
-        mParentView.getViewTreeObserver().addOnGlobalFocusChangeListener(mOnFocusChangeListener);
-        mNativeContextualSearchManagerPtr = nativeInit();
-        listenForHideNotifications();
-        mTabRedirectHandler = new TabRedirectHandler(mActivity);
-
-        mIsShowingPromo = false;
-        mDidLogPromoOutcome = false;
-        mDidLoadResolvedSearchRequest = false;
-        mWereSearchResultsSeen = false;
-        mNetworkCommunicator = this;
-        ApplicationStatus.registerStateListenerForActivity(this, mActivity);
-        mIsInitialized = true;
-    }
-
-    /**
-     * Destroys the native Contextual Search Manager.
-     * Call this method before orphaning this object to allow it to be garbage collected.
-     */
-    public void destroy() {
-        if (!mIsInitialized) return;
-
-        hideContextualSearch(StateChangeReason.UNKNOWN);
-        mParentView.getViewTreeObserver().removeOnGlobalFocusChangeListener(mOnFocusChangeListener);
-        nativeDestroy(mNativeContextualSearchManagerPtr);
-        stopListeningForHideNotifications();
-        mTabRedirectHandler.clear();
-        ApplicationStatus.unregisterActivityStateListener(this);
-    }
-
-    @Override
-    public void setContextualSearchPanelDelegate(ContextualSearchPanelDelegate delegate) {
-        mSearchPanelDelegate = delegate;
-    }
-
-    /**
-     * @return The {@link ContextualSearchPanelDelegate}, for testing purposes only.
-     */
-    @VisibleForTesting
-    public ContextualSearchPanelDelegate getContextualSearchPanelDelegate() {
-        return mSearchPanelDelegate;
-    }
-
-    /**
-     * Sets the selection controller for testing purposes.
-     */
-    @VisibleForTesting
-    ContextualSearchSelectionController getSelectionController() {
-        return mSelectionController;
-    }
-
-    @VisibleForTesting
-    boolean isSearchPanelShowing() {
-        return mSearchPanelDelegate.isShowing();
-    }
-
-    /**
-     * @return Whether the Search Panel is opened. That is, whether it is EXPANDED or MAXIMIZED.
-     */
-    public boolean isSearchPanelOpened() {
-        PanelState state = mSearchPanelDelegate.getPanelState();
-        return state == PanelState.EXPANDED || state == PanelState.MAXIMIZED;
-    }
-
-    /**
-     * @return The Base Page's {@link ContentViewCore}.
-     */
-    @Nullable private ContentViewCore getBaseContentView() {
-        return mSelectionController.getBaseContentView();
-    }
-
-    @Override
-    public void setPreferenceState(boolean enabled) {
-        PrefServiceBridge.getInstance().setContextualSearchState(enabled);
-    }
-
-    @Override
-    public boolean isPromoAvailable() {
-        return mPolicy.isPromoAvailable();
-    }
-
-    /**
-     * Hides the Contextual Search UX.
-     * @param reason The {@link StateChangeReason} for hiding Contextual Search.
-     */
-    public void hideContextualSearch(StateChangeReason reason) {
-        if (mSearchPanelDelegate == null) return;
-
-        if (mSearchPanelDelegate.isShowing()) {
-            mSearchPanelDelegate.closePanel(reason, false);
-        }
-    }
-
-    @Override
-    public void onCloseContextualSearch() {
-        if (mSearchPanelDelegate == null) return;
-
-        // NOTE(pedrosimonetti): hideContextualSearch() will also be called after swiping the
-        // Panel down in order to dismiss it. In this case, hideContextualSearch() will be called
-        // after completing the hide animation, and at that moment the Panel will not be showing
-        // anymore. Therefore, we need to always clear selection, regardless of when the Panel
-        // was still visible, in order to make sure the selection will be cleared appropriately.
-        if (mSelectionController.getSelectionType() == SelectionType.TAP) {
-            mSelectionController.clearSelection();
-        }
-
-        // Show the infobar container if it was visible before Contextual Search was shown.
-        if (mWereInfoBarsHidden) {
-            mWereInfoBarsHidden = false;
-            InfoBarContainer container = getInfoBarContainer();
-            if (container != null) {
-                container.setVisibility(View.VISIBLE);
-                container.setDoStayInvisible(false);
-            }
-        }
-
-        if (!mWereSearchResultsSeen && mLoadedSearchUrlTimeMs != 0L) {
-            removeLastSearchVisit();
-        }
-
-        // Clear the timestamp. This is to avoid future calls to hideContextualSearch clearing
-        // the current URL.
-        mLoadedSearchUrlTimeMs = 0L;
-        mWereSearchResultsSeen = false;
-
-        mNetworkCommunicator.destroySearchContentView();
-        mSearchRequest = null;
-
-        if (mIsShowingPromo && !mDidLogPromoOutcome) {
-            logPromoOutcome();
-        }
-
-        mIsShowingPromo = false;
-        mSearchPanelDelegate.setIsPromoActive(false);
-        notifyHideContextualSearch();
-    }
-
-    /**
-     * Called when the system back button is pressed. Will hide the layout.
-     */
-    public boolean onBackPressed() {
-        if (!mIsInitialized || !mSearchPanelDelegate.isShowing()) return false;
-        hideContextualSearch(StateChangeReason.BACK_PRESS);
-        return true;
-    }
-
-    /**
-     * Called when the orientation of the device changes.
-     */
-    public void onOrientationChange() {
-        if (!mIsInitialized) return;
-        hideContextualSearch(StateChangeReason.UNKNOWN);
-    }
-
-    /**
-     * Sets the {@link ContextualSearchNetworkCommunicator} to use for server requests.
-     * @param networkCommunicator The communicator for all future requests.
-     */
-    @VisibleForTesting
-    public void setNetworkCommunicator(ContextualSearchNetworkCommunicator networkCommunicator) {
-        mNetworkCommunicator = networkCommunicator;
-    }
-
-    /**
-     * Determines if the given selection is valid or not.
-     * @param selection The selection portion of the context.
-     * @return whether the given selection is considered a valid target for a search.
-     */
-    private boolean isValidSelection(String selection) {
-        return isValidSelection(selection, getBaseContentView());
-    }
-
-    @VisibleForTesting
-    boolean isValidSelection(String selection, ContentViewCore baseContentView) {
-        if (selection.length() > MAX_SELECTION_LENGTH || !doesContainAWord(selection)) {
-            return false;
-        }
-        return (baseContentView != null) && !baseContentView.isFocusedNodeEditable();
-    }
-
-    /**
-     * Shows the Contextual Search UX.
-     * Calls back into onGetContextualSearchQueryResponse.
-     * @param stateChangeReason The reason explaining the change of state.
-     */
-    private void showContextualSearch(StateChangeReason stateChangeReason) {
-        if (!mSearchPanelDelegate.isShowing()) {
-            // If visible, hide the infobar container before showing the Contextual Search panel.
-            InfoBarContainer container = getInfoBarContainer();
-            if (container != null && container.getVisibility() == View.VISIBLE) {
-                mWereInfoBarsHidden = true;
-                container.setVisibility(View.INVISIBLE);
-                container.setDoStayInvisible(true);
-            }
-        }
-
-        // If the user is jumping from one unseen search to another search, remove the last search
-        // from history.
-        PanelState state = mSearchPanelDelegate.getPanelState();
-        if (!mWereSearchResultsSeen && mLoadedSearchUrlTimeMs != 0L
-                && state != PanelState.UNDEFINED && state != PanelState.CLOSED) {
-            removeLastSearchVisit();
-        }
-
-        // Make sure we'll create a new Content View when needed.
-        mNetworkCommunicator.destroySearchContentView();
-
-        boolean isTap = mSelectionController.getSelectionType() == SelectionType.TAP;
-        boolean didRequestSurroundings = false;
-        if (isTap && mPolicy.shouldPreviousTapResolve(
-                mNetworkCommunicator.getBasePageUrl())) {
-            mNetworkCommunicator.startSearchTermResolutionRequest(
-                    mSelectionController.getSelectedText());
-            didRequestSurroundings = true;
-        } else {
-            boolean shouldPrefetch = mPolicy.shouldPrefetchSearchResult(isTap);
-            mSearchRequest = new ContextualSearchRequest(mSelectionController.getSelectedText(),
-                    null, shouldPrefetch);
-            mDidLoadResolvedSearchRequest = false;
-            getContextualSearchControl().setCentralText(mSelectionController.getSelectedText());
-            if (shouldPrefetch) loadSearchUrl();
-        }
-
-        if (!didRequestSurroundings) {
-            // Gather surrounding text for Icing integration, which will make the selection and
-            // a shorter version of the surroundings available for Conversational Search.
-            // Although the surroundings are extracted, they will not be sent to the server as
-            // part of search term resolution, just sent to Icing which keeps them local until
-            // the user activates a Voice Search.
-            nativeGatherSurroundingText(mNativeContextualSearchManagerPtr,
-                    mSelectionController.getSelectedText(), NEVER_USE_RESOLVED_SEARCH_TERM,
-                    getBaseContentView(), mPolicy.maySendBasePageUrl());
-        }
-
-        mWereSearchResultsSeen = false;
-
-        // TODO(donnd): although we are showing the bar here, we have not yet set the text!
-        // Refactor to show the bar and set the text at the same time!
-        // TODO(donnd): If there was a previously ongoing contextual search, we should ensure
-        // it's registered as closed.
-        mSearchPanelDelegate.peekPanel(stateChangeReason);
-
-        // Note: now that the contextual search has properly started, set the promo involvement.
-        if (mPolicy.isPromoAvailable()) {
-            mIsShowingPromo = true;
-            mDidLogPromoOutcome = false;
-            mSearchPanelDelegate.setIsPromoActive(true);
-            mSearchPanelDelegate.setDidSearchInvolvePromo();
-        }
-
-        assert mSelectionController.getSelectionType() != SelectionType.UNDETERMINED;
-        mWasActivatedByTap = mSelectionController.getSelectionType() == SelectionType.TAP;
-    }
-
-    @Override
-    public void startSearchTermResolutionRequest(String selection) {
-        ContentViewCore baseContentView = getBaseContentView();
-        if (baseContentView != null) {
-            nativeStartSearchTermResolutionRequest(mNativeContextualSearchManagerPtr, selection,
-                    ALWAYS_USE_RESOLVED_SEARCH_TERM, getBaseContentView(),
-                    mPolicy.maySendBasePageUrl());
-        }
-    }
-
-    @Override
-    @Nullable public URL getBasePageUrl() {
-        ContentViewCore baseContentViewCore = getBaseContentView();
-        if (baseContentViewCore == null) return null;
-
-        try {
-            return new URL(baseContentViewCore.getWebContents().getUrl());
-        } catch (MalformedURLException e) {
-            return null;
-        }
-    }
-
-    @Override
-    public void updateTopControlsState(int current, boolean animate) {
-        Tab currentTab = mActivity.getActivityTab();
-        if (currentTab != null) {
-            currentTab.updateTopControlsState(current, animate);
-        }
-    }
-
-    /**
-     * Determines if the given selection contains a word or not.
-     * @param selection The the selection to check for a word.
-     * @return Whether the selection contains a word anywhere within it or not.
-     */
-    @VisibleForTesting
-    public boolean doesContainAWord(String selection) {
-        return mContainsWordPattern.matcher(selection).find();
-    }
-
-    /**
-     * Accessor for the {@code InfoBarContainer} currently attached to the {@code Tab}.
-     */
-    private InfoBarContainer getInfoBarContainer() {
-        Tab tab = mActivity.getActivityTab();
-        return tab == null ? null : tab.getInfoBarContainer();
-    }
-
-    /**
-     * Inflates the Contextual Search control, if needed.
-     */
-    private ContextualSearchControl getContextualSearchControl() {
-        return mSearchPanelDelegate.getContextualSearchControl();
-    }
-
-    /**
-     * Listens for notifications that should hide the Contextual Search bar.
-     */
-    private void listenForHideNotifications() {
-        TabModelSelector selector = mActivity.getTabModelSelector();
-
-        mTabModelSelectorTabObserver = new TabModelSelectorTabObserver(selector) {
-            @Override
-            public void onPageLoadStarted(Tab tab, String url) {
-                hideContextualSearch(StateChangeReason.UNKNOWN);
-                mDidBasePageLoadJustStart = true;
-            }
-
-            @Override
-            public void onCrash(Tab tab, boolean sadTabShown) {
-                if (sadTabShown) {
-                    // Hide contextual search if the foreground tab crashed
-                    hideContextualSearch(StateChangeReason.UNKNOWN);
-                }
-            }
-
-            @Override
-            public void onClosingStateChanged(Tab tab, boolean closing) {
-                if (closing) hideContextualSearch(StateChangeReason.UNKNOWN);
-            }
-        };
-
-        for (TabModel tabModel : selector.getModels()) {
-            tabModel.addObserver(mTabModelObserver);
-        }
-    }
-
-    /**
-     * Stops listening for notifications that should hide the Contextual Search bar.
-     */
-    private void stopListeningForHideNotifications() {
-        if (mTabModelSelectorTabObserver != null) mTabModelSelectorTabObserver.destroy();
-
-        TabModelSelector selector = mActivity.getTabModelSelector();
-        if (selector != null) {
-            for (TabModel tabModel : selector.getModels()) {
-                tabModel.removeObserver(mTabModelObserver);
-            }
-        }
-    }
-
-    @Override
-    public void onActivityStateChange(Activity activity, int newState) {
-        if (newState == ActivityState.RESUMED || newState == ActivityState.STOPPED
-                || newState == ActivityState.DESTROYED) {
-            hideContextualSearch(StateChangeReason.UNKNOWN);
-        } else if (newState == ActivityState.PAUSED) {
-            mPolicy.logCurrentState(getBaseContentView());
-        }
-    }
-
-    /**
-     * Clears our private member referencing the native manager.
-     */
-    @CalledByNative
-    public void clearNativeManager() {
-        assert mNativeContextualSearchManagerPtr != 0;
-        mNativeContextualSearchManagerPtr = 0;
-    }
-
-    /**
-     * Sets our private member referencing the native manager.
-     * @param nativeManager The pointer to the native Contextual Search manager.
-     */
-    @CalledByNative
-    public void setNativeManager(long nativeManager) {
-        assert mNativeContextualSearchManagerPtr == 0;
-        mNativeContextualSearchManagerPtr = nativeManager;
-    }
-
-    /**
-     * Called when surrounding text is available.
-     * @param beforeText to be shown before the selected word.
-     * @param afterText to be shown after the selected word.
-     */
-    @CalledByNative
-    private void onSurroundingTextAvailable(final String beforeText, final String afterText) {
-        if (mSearchPanelDelegate.isShowing()) {
-            getContextualSearchControl().setSearchContext(
-                    mSelectionController.getSelectedText(), beforeText, afterText);
-        }
-    }
-
-    /**
-     * Called by native code when a selection is available to share with Icing (for Conversational
-     * Search).
-     */
-    @CalledByNative
-    private void onIcingSelectionAvailable(
-            final String encoding, final String surroundingText, int startOffset, int endOffset) {
-        GSAContextDisplaySelection selection =
-                new GSAContextDisplaySelection(encoding, surroundingText, startOffset, endOffset);
-        notifyShowContextualSearch(selection, mNetworkCommunicator.getBasePageUrl());
-    }
-
-    /**
-     * Called in response to the
-     * {@link ContextualSearchManager#nativeStartSearchTermResolutionRequest} method.
-     * @param isNetworkUnavailable Indicates if the network is unavailable, in which case all other
-     *        parameters should be ignored.
-     * @param responseCode The HTTP response code.  If the code is not OK, the query
-     *        should be ignored.
-     * @param searchTerm The term to use in our subsequent search.
-     * @param displayText The text to display in our UX.
-     * @param alternateTerm The alternate term to display on the results page.
-     */
-    @CalledByNative
-    public void onSearchTermResolutionResponse(boolean isNetworkUnavailable, int responseCode,
-            final String searchTerm, final String displayText, final String alternateTerm,
-            boolean doPreventPreload) {
-        mNetworkCommunicator.handleSearchTermResolutionResponse(isNetworkUnavailable, responseCode,
-                searchTerm, displayText, alternateTerm, doPreventPreload);
-    }
-
-    @Override
-    public void handleSearchTermResolutionResponse(boolean isNetworkUnavailable, int responseCode,
-            String searchTerm, String displayText, String alternateTerm, boolean doPreventPreload) {
-        if (!mSearchPanelDelegate.isShowing()) return;
-
-        // Show an appropriate message for what to search for.
-        String message;
-        boolean doLiteralSearch = false;
-        if (isNetworkUnavailable) {
-            message = mActivity.getResources().getString(
-                    R.string.contextual_search_network_unavailable);
-        } else if (!isHttpFailureCode(responseCode)) {
-            message = displayText;
-        } else if (!mPolicy.shouldShowErrorCodeInBar()) {
-            message = mSelectionController.getSelectedText();
-            doLiteralSearch = true;
-        } else {
-            message = mActivity.getResources().getString(
-                    R.string.contextual_search_error, responseCode);
-            doLiteralSearch = true;
-        }
-        getContextualSearchControl().setCentralText(message);
-
-        // If there was an error, fall back onto a literal search for the selection.
-        // Since we're showing the panel, there must be a selection.
-        if (doLiteralSearch) {
-            searchTerm = mSelectionController.getSelectedText();
-            alternateTerm = null;
-            doPreventPreload = true;
-        }
-        if (!searchTerm.isEmpty()) {
-            // TODO(donnd): Instead of preloading, we should prefetch (ie the URL should not
-            // appear in the user's history until the user views it).  See crbug.com/406446.
-            boolean shouldPreload = !doPreventPreload && mPolicy.shouldPrefetchSearchResult(true);
-            mSearchRequest = new ContextualSearchRequest(searchTerm, alternateTerm, shouldPreload);
-            mDidLoadResolvedSearchRequest = false;
-            if (mIsSearchContentViewShowing) {
-                mSearchRequest.setNormalPriority();
-            }
-            if (mIsSearchContentViewShowing || shouldPreload) {
-                loadSearchUrl();
-            }
-            mPolicy.logSearchTermResolutionDetails(searchTerm,
-                    mNetworkCommunicator.getBasePageUrl());
-        }
-    }
-
-    /**
-     * Loads a Search Request in the Contextual Search's Content View.
-     */
-    private void loadSearchUrl() {
-        mLoadedSearchUrlTimeMs = System.currentTimeMillis();
-        mNetworkCommunicator.loadUrl(mSearchRequest.getSearchUrl());
-        mDidLoadResolvedSearchRequest = true;
-
-        // TODO(pedrosimonetti): If the user taps on a word and quickly after that taps on the
-        // peeking Search Bar, the Search Content View will not be displayed. It seems that
-        // calling ContentViewCore.onShow() while it's being created has no effect. Need
-        // to coordinate with Chrome-Android folks to come up with a proper fix for this.
-        // For now, we force the ContentView to be displayed by calling onShow() again
-        // when a URL is being loaded. See: crbug.com/398206
-        if (mIsSearchContentViewShowing && mSearchContentViewCore != null) {
-            mSearchContentViewCore.onShow();
-        }
-    }
-
-    /**
-     * @return Whether a Tap gesture is currently supported.
-     */
-    private boolean isTapSupported() {
-        // Base page just started navigating away, so taps should be ignored.
-        if (mDidBasePageLoadJustStart) return false;
-
-        return mPolicy.isTapSupported();
-    }
-
-    // --------------------------------------------------------------------------------------------
-    // Search Content View
-    // --------------------------------------------------------------------------------------------
-
-    /**
-     * Gets the {@code ContentViewCore} associated with Contextual Search Panel.
-     * @return Contextual Search Panel's {@code ContentViewCore}.
-     */
-    @Override
-    public ContentViewCore getSearchContentViewCore() {
-        return mSearchContentViewCore;
-    }
-
-    /**
-     * Sets the {@code ContextualSearchContentViewDelegate} associated with the Content View.
-     * @param delegate
-     */
-    public void setSearchContentViewDelegate(ContextualSearchContentViewDelegate delegate) {
-        mSearchContentViewDelegate = delegate;
-    }
-
-    /**
-     * Removes the last resolved search URL from the Chrome history.
-     */
-    private void removeLastSearchVisit() {
-        if (mSearchRequest != null) {
-            nativeRemoveLastSearchVisit(mNativeContextualSearchManagerPtr,
-                    mSearchRequest.getSearchUrl(), mLoadedSearchUrlTimeMs);
-        }
-    }
-
-    /**
-     * Called when the Search content view navigates to a contextual search request URL.
-     * This navigation could be for a prefetch when the panel is still closed, or
-     * a load of a user-visible search result.
-     * @param isFailure Whether the navigation failed.
-     */
-    private void onContextualSearchRequestNavigation(boolean isFailure) {
-        if (mSearchRequest == null) return;
-
-        if (mSearchRequest.isUsingLowPriority()) {
-            ContextualSearchUma.logLowPrioritySearchRequestOutcome(isFailure);
-        } else {
-            ContextualSearchUma.logNormalPrioritySearchRequestOutcome(isFailure);
-            if (mSearchRequest.getHasFailed()) {
-                ContextualSearchUma.logFallbackSearchRequestOutcome(isFailure);
-            }
-        }
-
-        if (isFailure && mSearchRequest.isUsingLowPriority()) {
-            // We're navigating to an error page, so we want to stop and retry.
-            // Stop loading the page that displays the error to the user.
-            if (mSearchContentViewCore != null) {
-                // When running tests the Content View might not exist.
-                mSearchContentViewCore.getWebContents().stop();
-            }
-            mSearchRequest.setHasFailed();
-            mSearchRequest.setNormalPriority();
-            // If the content view is showing, load at normal priority now.
-            if (mIsSearchContentViewShowing) {
-                loadSearchUrl();
-            } else {
-                mDidLoadResolvedSearchRequest = false;
-            }
-        }
-    }
-
-    @Override
-    public void logPromoOutcome() {
-        ContextualSearchUma.logPromoOutcome(mWasActivatedByTap);
-        mDidLogPromoOutcome = true;
-    }
-
-    /**
-     * Called when the Search Content view has finished loading to record how long it takes the SERP
-     * to load after opening the panel.
-     */
-    private void onSearchResultsLoaded() {
-        if (mSearchRequest == null) return;
-
-        mSearchPanelDelegate.onSearchResultsLoaded(mSearchRequest.wasPrefetch());
-    }
-
-    /**
-     * Creates a new Content View Core to display search results, if needed.
-     */
-    private void createNewSearchContentViewCoreIfNeeded() {
-        if (mSearchContentViewCore == null) {
-            mNetworkCommunicator.createNewSearchContentView();
-        }
-    }
-
-    @Override
-    public void loadUrl(String url) {
-        createNewSearchContentViewCoreIfNeeded();
-        if (mSearchContentViewCore != null && mSearchContentViewCore.getWebContents() != null) {
-            mDidLoadAnyUrl = true;
-            mSearchContentViewCore.getWebContents().getNavigationController().loadUrl(
-                    new LoadUrlParams(url));
-        }
-    }
-
-    @Override
-    public void createNewSearchContentView() {
-        if (mSearchContentViewCore != null) {
-            mNetworkCommunicator.destroySearchContentView();
-        }
-
-        mSearchContentViewCore = new ContentViewCore(mActivity);
-        ContentView cv = new ContentView(mActivity, mSearchContentViewCore);
-        // Creates an initially hidden WebContents which gets shown when the panel is opened.
-        mSearchContentViewCore.initialize(cv, cv,
-                WebContentsFactory.createWebContents(false, true), mWindowAndroid);
-
-        // Transfers the ownership of the WebContents to the native ContextualSearchManager.
-        nativeSetWebContents(mNativeContextualSearchManagerPtr, mSearchContentViewCore,
-                mWebContentsDelegate);
-
-        mSearchWebContentsObserver =
-                new WebContentsObserver(mSearchContentViewCore.getWebContents()) {
-                    @Override
-                    public void didStartLoading(String url) {
-                        mDidPromoteSearchNavigation = false;
-                    }
-
-                    @Override
-                    public void didStartProvisionalLoadForFrame(long frameId, long parentFrameId,
-                            boolean isMainFrame, String validatedUrl, boolean isErrorPage,
-                            boolean isIframeSrcdoc) {
-                        if (isMainFrame) onExternalNavigation(validatedUrl);
-                    }
-
-                    @Override
-                    public void didNavigateMainFrame(String url, String baseUrl,
-                            boolean isNavigationToDifferentPage, boolean isNavigationInPage,
-                            int httpResultCode) {
-                        mNetworkCommunicator.handleDidNavigateMainFrame(url, httpResultCode);
-                    }
-
-                    @Override
-                    public void didFinishLoad(long frameId, String validatedUrl,
-                            boolean isMainFrame) {
-                        onSearchResultsLoaded();
-
-                        // Any time we place a page in a ContentViewCore, clear history if needed.
-                        // This prevents error URLs from appearing in the Tab's history stack.
-                        // Also please note that clearHistory() will not
-                        // clear the current entry (search results page in this case),
-                        // and it will not work properly if there are pending navigations.
-                        // That's why we need to clear the history here, after the navigation
-                        // is completed.
-                        boolean shouldClearHistory =
-                                mSearchRequest != null && mSearchRequest.getHasFailed();
-                        if (shouldClearHistory && mSearchContentViewCore != null) {
-                            mSearchContentViewCore.getWebContents().getNavigationController()
-                                    .clearHistory();
-                        }
-                    }
-                };
-
-        mSearchContentViewDelegate.setContextualSearchContentViewCore(mSearchContentViewCore);
-        nativeSetInterceptNavigationDelegate(mNativeContextualSearchManagerPtr,
-                new InterceptNavigationDelegateImpl(), mSearchContentViewCore.getWebContents());
-    }
-
-    @Override
-    public void handleDidNavigateMainFrame(String url, int httpResultCode) {
-        if (shouldPromoteSearchNavigation()) {
-            onExternalNavigation(url);
-        } else {
-            // Could be just prefetching, check if that failed.
-            boolean isFailure = isHttpFailureCode(httpResultCode);
-            onContextualSearchRequestNavigation(isFailure);
-        }
-        mDidLoadAnyUrl = false;
-    }
-
-    /**
-     * @return Whether the given HTTP result code represents a failure or not.
-     */
-    private boolean isHttpFailureCode(int httpResultCode) {
-        return httpResultCode <= 0 || httpResultCode >= 400;
-    }
-
-    /**
-     * @return whether a navigation in the search content view should promote to a separate tab.
-     */
-    private boolean shouldPromoteSearchNavigation() {
-        // A navigation can be due to us loading a URL, or a touch in the search content view.
-        // Require a touch, but no recent loading, in order to promote to a separate tab.
-        // Note that tapping the opt-in button requires checking for recent loading.
-        return mSearchPanelDelegate.didTouchSearchContentView() && !mDidLoadAnyUrl;
-    }
-
-    /**
-     * Called to check if an external navigation is being done and take the appropriate action:
-     * Auto-promotes the panel into a separate tab if that's not already being done.
-     * @param url The URL we are navigating to.
-     */
-    private void onExternalNavigation(String url) {
-        if (!mDidPromoteSearchNavigation
-                && !BLACKLISTED_URL.equals(url)
-                && !url.startsWith(INTENT_URL_PREFIX)
-                && shouldPromoteSearchNavigation()) {
-            // Do not promote to a regular tab if we're loading our Resolved Search
-            // URL, otherwise we'll promote it when prefetching the Serp.
-            // Don't promote URLs when they are navigating to an intent - this is
-            // handled by the InterceptNavigationDelegate which uses a faster
-            // maximizing animation.
-            mDidPromoteSearchNavigation = true;
-            mSearchPanelDelegate.maximizePanelThenPromoteToTab(StateChangeReason.SERP_NAVIGATION);
-        }
-    }
-
-    @Override
-    public void destroySearchContentView() {
-        if (mSearchContentViewCore != null && mSearchContentViewDelegate != null) {
-            nativeDestroyWebContents(mNativeContextualSearchManagerPtr);
-            mSearchContentViewDelegate.releaseContextualSearchContentViewCore();
-            mSearchContentViewCore.destroy();
-            mSearchContentViewCore = null;
-            if (mSearchWebContentsObserver != null) {
-                mSearchWebContentsObserver.destroy();
-                mSearchWebContentsObserver = null;
-            }
-        }
-
-        // This should be called last here. The setSearchContentViewVisibility method
-        // will change the visibility the SearchContentView but also set the value of the
-        // internal property mIsSearchContentViewShowing. If we call this after deleting
-        // the SearchContentView, it will be faster, because only the internal property
-        // will be changed, since there will be no need to change the visibility of the
-        // SearchContentView.
-        setSearchContentViewVisibility(false);
-    }
-
-    @Override
-    public void openResolvedSearchUrlInNewTab() {
-        if (mSearchRequest != null && mSearchRequest.getSearchUrl() != null) {
-            openUrlInNewTab(mSearchRequest.getSearchUrl());
-        }
-    }
-
-    /**
-     * Convenience method for opening a specific |url| in a new Tab.
-     */
-    private void openUrlInNewTab(String url) {
-        TabModelSelector tabModelSelector = mActivity.getTabModelSelector();
-        tabModelSelector.openNewTab(
-                new LoadUrlParams(url),
-                TabLaunchType.FROM_MENU_OR_OVERVIEW,
-                tabModelSelector.getCurrentTab(),
-                tabModelSelector.isIncognitoSelected());
-    }
-
-    @Override
-    public boolean isRunningInCompatibilityMode() {
-        return DeviceClassManager.isAccessibilityModeEnabled(mActivity)
-                || SysUtils.isLowEndDevice();
-    }
-
-    @Override
-    public void promoteToTab(boolean shouldFocusOmnibox) {
-        mIsPromotingToTab = true;
-        // If the request object is null that means that a Contextual Search has just started
-        // and the Search Term Resolution response hasn't arrived yet. In this case, promoting
-        // the Panel to a Tab will result in creating a new tab with URL about:blank. To prevent
-        // this problem, we are ignoring tap gestures in the Search Bar if we don't know what
-        // to search for.
-        if (mSearchRequest != null
-                && mSearchContentViewCore != null
-                && mSearchContentViewCore.getWebContents() != null) {
-            nativeReleaseWebContents(mNativeContextualSearchManagerPtr);
-            mSearchContentViewDelegate.releaseContextualSearchContentViewCore();
-            if (!mTabPromotionDelegate.createContextualSearchTab(mSearchContentViewCore)) {
-                nativeDestroyWebContentsFromContentViewCore(mNativeContextualSearchManagerPtr,
-                        mSearchContentViewCore);
-                mSearchContentViewCore.destroy();
-            }
-            if (mSearchWebContentsObserver != null) {
-                mSearchWebContentsObserver.destroy();
-                mSearchWebContentsObserver = null;
-            }
-            mSearchContentViewCore = null;
-            mIsSearchContentViewShowing = false;
-            mSearchRequest = null;
-
-            // NOTE(pedrosimonetti): The Panel should be closed after being promoted to a Tab
-            // to prevent Chrome-Android from animating the creation of the new Tab.
-            mSearchPanelDelegate.closePanel(StateChangeReason.TAB_PROMOTION, false);
-
-            // Focus the Omnibox.
-            if (shouldFocusOmnibox) {
-                new Handler().post(new Runnable() {
-                    @Override
-                    public void run() {
-                        View urlBarView = mActivity.findViewById(R.id.url_bar);
-                        urlBarView.requestFocus();
-                    }
-                });
-            }
-        }
-        mIsPromotingToTab = false;
-    }
-
-    @Override
-    public void resetSearchContentViewScroll() {
-        if (mSearchContentViewCore != null) {
-            mSearchContentViewCore.scrollTo(0, 0);
-        }
-    }
-
-    @Override
-    public float getSearchContentViewVerticalScroll() {
-        return mSearchContentViewCore != null
-                ? mSearchContentViewCore.computeVerticalScrollOffset() : -1.f;
-    }
-
-    @Override
-    public void setSearchContentViewVisibility(boolean isVisible) {
-        if (mIsSearchContentViewShowing == isVisible) return;
-
-        mIsSearchContentViewShowing = isVisible;
-        if (isVisible) {
-            mWereSearchResultsSeen = true;
-            // If there's no current request, then either a search term resolution
-            // is in progress or we should do a verbatim search now.
-            if (mSearchRequest == null
-                    && mPolicy.shouldCreateVerbatimRequest(mSelectionController,
-                            mNetworkCommunicator.getBasePageUrl())) {
-                mSearchRequest = new ContextualSearchRequest(
-                        mSelectionController.getSelectedText());
-                mDidLoadResolvedSearchRequest = false;
-            }
-            if (mSearchRequest != null && !mDidLoadResolvedSearchRequest) {
-                mSearchRequest.setNormalPriority();
-                loadSearchUrl();
-            }
-            // The CVC is created with the search request, but if none was made we'll need
-            // one in order to display an empty panel.
-            createNewSearchContentViewCoreIfNeeded();
-            if (mSearchContentViewCore != null) mSearchContentViewCore.onShow();
-            mSearchPanelDelegate.setWasSearchContentViewSeen();
-            mPolicy.updateCountersForOpen();
-        } else {
-            if (mSearchContentViewCore != null) mSearchContentViewCore.onHide();
-        }
-    }
-
-    @Override
-    public void preserveBasePageSelectionOnNextLossOfFocus() {
-        ContentViewCore basePageContentView = getBaseContentView();
-        if (basePageContentView != null) {
-            basePageContentView.preserveSelectionOnNextLossOfFocus();
-        }
-    }
-
-    @Override
-    public void dismissContextualSearchBar() {
-        hideContextualSearch(StateChangeReason.UNKNOWN);
-    }
-
-    // Used to intercept intent navigations.
-    // TODO(jeremycho): Consider creating a Tab with the Panel's ContentViewCore,
-    // which would also handle functionality like long-press-to-paste.
-    private class InterceptNavigationDelegateImpl implements InterceptNavigationDelegate {
-        final ExternalNavigationHandler mExternalNavHandler = new ExternalNavigationHandler(
-                mActivity);
-        @Override
-        public boolean shouldIgnoreNavigation(NavigationParams navigationParams) {
-            mTabRedirectHandler.updateNewUrlLoading(navigationParams.pageTransitionType,
-                    navigationParams.isRedirect,
-                    navigationParams.hasUserGesture || navigationParams.hasUserGestureCarryover,
-                    mActivity.getLastUserInteractionTime(), TabRedirectHandler.INVALID_ENTRY_INDEX);
-
-            ExternalNavigationParams params = new ExternalNavigationParams.Builder(
-                    navigationParams.url, false, navigationParams.referrer,
-                    navigationParams.pageTransitionType, navigationParams.isRedirect)
-                    .setApplicationMustBeInForeground(true)
-                    .setRedirectHandler(mTabRedirectHandler)
-                    .setIsMainFrame(navigationParams.isMainFrame)
-                    .build();
-            if (mExternalNavHandler.shouldOverrideUrlLoading(params)
-                    != OverrideUrlLoadingResult.NO_OVERRIDE) {
-                mSearchPanelDelegate.maximizePanelThenPromoteToTab(
-                        StateChangeReason.TAB_PROMOTION,
-                        INTERCEPT_NAVIGATION_PROMOTION_ANIMATION_DURATION_MS);
-                return true;
-            }
-            return false;
-        }
-    }
-
-    // --------------------------------------------------------------------------------------------
-    // ContextualSearchClient -- interface used by ContentViewCore.
-    // --------------------------------------------------------------------------------------------
-
-    @Override
-    public void onSelectionChanged(String selection) {
-        mSelectionController.handleSelectionChanged(selection);
-        updateTopControlsState(TopControlsState.BOTH, true);
-    }
-
-    @Override
-    public void onSelectionEvent(int eventType, float posXPix, float posYPix) {
-        mSelectionController.handleSelectionEvent(eventType, posXPix, posYPix);
-    }
-
-    @Override
-    public void showUnhandledTapUIIfNeeded(final int x, final int y) {
-        mDidBasePageLoadJustStart = false;
-        mSelectionController.handleShowUnhandledTapUIIfNeeded(x, y);
-    }
-
-    // --------------------------------------------------------------------------------------------
-    // Selection
-    // --------------------------------------------------------------------------------------------
-
-    /**
-     * Returns a new {@code GestureStateListener} that will listen for events in the Base Page.
-     * This listener will handle all Contextual Search-related interactions that go through the
-     * listener.
-     */
-    public GestureStateListener getGestureStateListener() {
-        return mSelectionController.getGestureStateListener();
-    }
-
-    @Override
-    public void handleScroll() {
-        hideContextualSearch(StateChangeReason.BASE_PAGE_SCROLL);
-    }
-
-    @Override
-    public void handleInvalidTap() {
-        hideContextualSearch(StateChangeReason.BASE_PAGE_TAP);
-    }
-
-    @Override
-    public void handleValidTap() {
-        if (isTapSupported()) {
-            // Here we are starting a new Contextual Search with a Tap gesture, therefore
-            // we need to clear to properly reflect that a search just started and we don't
-            // have the resolved search term yet.
-            mSearchRequest = null;
-
-            // Let the policy know that a tap gesture has been received.
-            mPolicy.registerTap();
-
-            ContentViewCore baseContentView = getBaseContentView();
-            if (baseContentView != null) baseContentView.getWebContents().selectWordAroundCaret();
-        }
-    }
-
-    @Override
-    public void handleSelection(String selection, SelectionType type, float x, float y) {
-        if (!selection.isEmpty()) {
-            boolean isSelectionValid = isValidSelection(selection);
-
-            StateChangeReason stateChangeReason = type == SelectionType.TAP
-                    ? StateChangeReason.TEXT_SELECT_TAP : StateChangeReason.TEXT_SELECT_LONG_PRESS;
-            ContextualSearchUma.logSelectionIsValid(isSelectionValid);
-
-            if (isSelectionValid) {
-                mSearchPanelDelegate.updateBasePageSelectionYPx(y);
-                showContextualSearch(stateChangeReason);
-            } else {
-                hideContextualSearch(stateChangeReason);
-            }
-        }
-    }
-
-    @Override
-    public void handleSelectionDismissal() {
-        if (mSearchPanelDelegate.isShowing() && !mIsPromotingToTab) {
-            hideContextualSearch(StateChangeReason.CLEARED_SELECTION);
-        }
-    }
-
-    @Override
-    public void handleSelectionModification(String selection, float x, float y) {
-        if (mSearchPanelDelegate.isShowing()) {
-            getContextualSearchControl().setCentralText(selection);
-        }
-    }
-
-    // --------------------------------------------------------------------------------------------
-    // Native calls
-    // --------------------------------------------------------------------------------------------
-
-    private native long nativeInit();
-    private native void nativeDestroy(long nativeContextualSearchManager);
-    private native void nativeStartSearchTermResolutionRequest(long nativeContextualSearchManager,
-            String selection, boolean useResolvedSearchTerm, ContentViewCore baseContentViewCore,
-            boolean maySendBasePageUrl);
-    private native void nativeGatherSurroundingText(long nativeContextualSearchManager,
-            String selection, boolean useResolvedSearchTerm, ContentViewCore baseContentViewCore,
-            boolean maySendBasePageUrl);
-    private native void nativeRemoveLastSearchVisit(
-            long nativeContextualSearchManager, String searchUrl, long searchUrlTimeMs);
-    private native void nativeSetWebContents(long nativeContextualSearchManager,
-            ContentViewCore searchContentViewCore, WebContentsDelegateAndroid delegate);
-    private native void nativeDestroyWebContents(long nativeContextualSearchManager);
-    private native void nativeReleaseWebContents(long nativeContextualSearchManager);
-    private native void nativeDestroyWebContentsFromContentViewCore(
-            long nativeContextualSearchManager, ContentViewCore contentViewCore);
-    private native void nativeSetInterceptNavigationDelegate(long nativeContextualSearchManager,
-            InterceptNavigationDelegate delegate, WebContents webContents);
-}