Merge java_staging/src into java/src.

chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/NewTabPageView.java

Index: chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/NewTabPageView.java
diff --git a/chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/NewTabPageView.java b/chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/NewTabPageView.java
deleted file mode 100644
index 98cfe1146cf7daba402c45278f272d0f5cdaa06f..0000000000000000000000000000000000000000
--- a/chrome/android/java_staging/src/org/chromium/chrome/browser/ntp/NewTabPageView.java
+++ /dev/null
@@ -1,967 +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.ntp;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Rect;
-import android.graphics.drawable.BitmapDrawable;
-import android.net.Uri;
-import android.os.Build;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawable;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawableFactory;
-import android.text.Editable;
-import android.text.TextUtils;
-import android.text.TextWatcher;
-import android.text.method.LinkMovementMethod;
-import android.text.style.ClickableSpan;
-import android.util.AttributeSet;
-import android.view.LayoutInflater;
-import android.view.MotionEvent;
-import android.view.View;
-import android.view.View.OnLayoutChangeListener;
-import android.view.ViewGroup;
-import android.view.ViewStub;
-import android.widget.Button;
-import android.widget.FrameLayout;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import org.chromium.base.CommandLine;
-import org.chromium.base.FieldTrialList;
-import org.chromium.base.VisibleForTesting;
-import org.chromium.base.metrics.RecordHistogram;
-import org.chromium.chrome.R;
-import org.chromium.chrome.browser.ChromeSwitches;
-import org.chromium.chrome.browser.LogoBridge.Logo;
-import org.chromium.chrome.browser.LogoBridge.LogoObserver;
-import org.chromium.chrome.browser.favicon.FaviconHelper.FaviconImageCallback;
-import org.chromium.chrome.browser.favicon.LargeIconBridge.LargeIconCallback;
-import org.chromium.chrome.browser.ntp.MostVisitedItem.MostVisitedItemManager;
-import org.chromium.chrome.browser.ntp.NewTabPage.OnSearchBoxScrollListener;
-import org.chromium.chrome.browser.profiles.MostVisitedSites.MostVisitedURLsObserver;
-import org.chromium.chrome.browser.profiles.MostVisitedSites.ThumbnailCallback;
-import org.chromium.chrome.browser.util.FeatureUtilities;
-import org.chromium.chrome.browser.util.ViewUtils;
-import org.chromium.chrome.browser.widget.RoundedIconGenerator;
-import org.chromium.ui.text.SpanApplier;
-import org.chromium.ui.text.SpanApplier.SpanInfo;
-
-import java.util.Locale;
-
-/**
- * The native new tab page, represented by some basic data such as title and url, and an Android
- * View that displays the page.
- */
-public class NewTabPageView extends FrameLayout
-        implements MostVisitedURLsObserver, OnLayoutChangeListener {
-
-    static final int MAX_MOST_VISITED_SITES = 12;
-    private static final int SHADOW_COLOR = 0x11000000;
-    private static final long SNAP_SCROLL_DELAY_MS = 30;
-
-    private static final String ICON_NTP_FIELD_TRIAL_NAME = "IconNTP";
-    private static final String ICON_NTP_ENABLED_GROUP = "Enabled";
-
-    private ViewGroup mContentView;
-    private NewTabScrollView mScrollView;
-    private LogoView mSearchProviderLogoView;
-    private View mSearchBoxView;
-    private TextView mSearchBoxTextView;
-    private ImageView mVoiceSearchButton;
-    private ViewGroup mMostVisitedLayout;
-    private View mMostVisitedPlaceholder;
-    private View mOptOutView;
-    private View mNoSearchLogoSpacer;
-
-    private OnSearchBoxScrollListener mSearchBoxScrollListener;
-
-    private NewTabPageManager mManager;
-    private MostVisitedDesign mMostVisitedDesign;
-    private MostVisitedItem[] mMostVisitedItems;
-    private boolean mFirstShow = true;
-    private boolean mSearchProviderHasLogo = true;
-    private boolean mHasReceivedMostVisitedSites;
-    private boolean mPendingSnapScroll;
-
-    /**
-     * The number of asynchronous tasks that need to complete before the page is done loading.
-     * This starts at one to track when the view is finished attaching to the window.
-     */
-    private int mPendingLoadTasks = 1;
-    private boolean mLoadHasCompleted;
-
-    private float mUrlFocusChangePercent;
-    private boolean mDisableUrlFocusChangeAnimations;
-
-    private boolean mSnapshotMostVisitedChanged;
-    private int mSnapshotWidth;
-    private int mSnapshotHeight;
-    private int mSnapshotScrollY;
-
-    /**
-     * Manages the view interaction with the rest of the system.
-     */
-    public interface NewTabPageManager extends MostVisitedItemManager {
-        /** @return Whether the location bar is shown in the NTP. */
-        boolean isLocationBarShownInNTP();
-
-        /** @return Whether the document mode opt out promo should be shown. */
-        boolean shouldShowOptOutPromo();
-
-        /** Called when the document mode opt out promo is shown. */
-        void optOutPromoShown();
-
-        /** Called when the user clicks "settings" or "ok, got it" on the opt out promo. */
-        void optOutPromoClicked(boolean settingsClicked);
-
-        /** Opens the bookmarks page in the current tab. */
-        void navigateToBookmarks();
-
-        /** Opens the recent tabs page in the current tab. */
-        void navigateToRecentTabs();
-
-        /**
-         * Animates the search box up into the omnibox and bring up the keyboard.
-         * @param beginVoiceSearch Whether to begin a voice search.
-         * @param pastedText Text to paste in the omnibox after it's been focused. May be null.
-         */
-        void focusSearchBox(boolean beginVoiceSearch, String pastedText);
-
-        /**
-         * Gets the list of most visited sites.
-         * @param observer The observer to be notified with the list of sites.
-         * @param numResults The maximum number of sites to retrieve.
-         */
-        void setMostVisitedURLsObserver(MostVisitedURLsObserver observer, int numResults);
-
-        /**
-         * Gets a cached thumbnail of a URL.
-         * @param url The URL whose thumbnail is being retrieved.
-         * @param thumbnailCallback The callback to be notified when the thumbnail is available.
-         */
-        void getURLThumbnail(String url, ThumbnailCallback thumbnailCallback);
-
-        /**
-         * Gets the favicon image for a given URL.
-         * @param url The URL of the site whose favicon is being requested.
-         * @param size The desired size of the favicon in pixels.
-         * @param faviconCallback The callback to be notified when the favicon is available.
-         */
-        void getLocalFaviconImageForURL(
-                String url, int size, FaviconImageCallback faviconCallback);
-
-        /**
-         * Gets the large icon (e.g. favicon or touch icon) for a given URL.
-         * @param url The URL of the site whose icon is being requested.
-         * @param size The desired size of the icon in pixels.
-         * @param callback The callback to be notified when the icon is available.
-         */
-        void getLargeIconForUrl(String url, int size, LargeIconCallback callback);
-
-        /**
-         * Navigates to a URL chosen by the search provider when the user clicks on the logo.
-         */
-        void openLogoLink();
-
-        /**
-         * Gets the default search provider's logo and calls logoObserver with the result.
-         * @param logoObserver The callback to notify when the logo is available.
-         */
-        void getSearchProviderLogo(LogoObserver logoObserver);
-
-        /**
-         * Called when the NTP has completely finished loading (all views will be inflated
-         * and any dependent resources will have been loaded).
-         */
-        void onLoadingComplete();
-    }
-
-    /**
-     * Returns a title suitable for display for a link (e.g. a most visited item). If |title| is
-     * non-empty, this simply returns it. Otherwise, returns a shortened form of the URL.
-     */
-    static String getTitleForDisplay(String title, String url) {
-        if (TextUtils.isEmpty(title) && url != null) {
-            Uri uri = Uri.parse(url);
-            String host = uri.getHost();
-            String path = uri.getPath();
-            if (host == null) host = "";
-            if (TextUtils.isEmpty(path) || path.equals("/")) path = "";
-            title = host + path;
-        }
-        return title;
-    }
-
-    /**
-     * Default constructor required for XML inflation.
-     */
-    public NewTabPageView(Context context, AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    private boolean isIconNtpEnabled() {
-        // Query the field trial state first, to ensure that UMA reports the correct group.
-        String fieldTrialGroup = FieldTrialList.findFullName(ICON_NTP_FIELD_TRIAL_NAME);
-        CommandLine commandLine = CommandLine.getInstance();
-        if (commandLine.hasSwitch(ChromeSwitches.DISABLE_ICON_NTP)) return false;
-        if (commandLine.hasSwitch(ChromeSwitches.ENABLE_ICON_NTP)) return true;
-        return fieldTrialGroup.equals(ICON_NTP_ENABLED_GROUP);
-    }
-
-    /**
-     * Initializes the NTP. This must be called immediately after inflation, before this object is
-     * used in any other way.
-     *
-     * @param manager NewTabPageManager used to perform various actions when the user interacts
-     *                with the page.
-     * @param isSingleUrlBarMode Whether the NTP is in single URL bar mode.
-     * @param searchProviderHasLogo Whether the search provider has a logo.
-     */
-    public void initialize(NewTabPageManager manager, boolean isSingleUrlBarMode,
-            boolean searchProviderHasLogo) {
-        mManager = manager;
-
-        mScrollView = (NewTabScrollView) findViewById(R.id.ntp_scrollview);
-        mScrollView.enableBottomShadow(SHADOW_COLOR);
-        mContentView = (ViewGroup) findViewById(R.id.ntp_content);
-
-        mMostVisitedDesign = isIconNtpEnabled()
-                ? new IconMostVisitedDesign(getContext())
-                : new ThumbnailMostVisitedDesign(getContext());
-        ViewStub mostVisitedLayoutStub = (ViewStub) findViewById(R.id.most_visited_layout_stub);
-        mostVisitedLayoutStub.setLayoutResource(mMostVisitedDesign.getMostVisitedLayoutId());
-        mMostVisitedLayout = (ViewGroup) mostVisitedLayoutStub.inflate();
-
-        mSearchProviderLogoView = (LogoView) findViewById(R.id.search_provider_logo);
-        mSearchBoxView = findViewById(R.id.search_box);
-        mNoSearchLogoSpacer = findViewById(R.id.no_search_logo_spacer);
-
-        mSearchBoxTextView = (TextView) mSearchBoxView.findViewById(R.id.search_box_text);
-        String hintText = getResources().getString(R.string.search_or_type_url);
-        if (isSingleUrlBarMode) {
-            mSearchBoxTextView.setHint(hintText);
-        } else {
-            mSearchBoxTextView.setContentDescription(hintText);
-        }
-        mSearchBoxTextView.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                mManager.focusSearchBox(false, null);
-            }
-        });
-        mSearchBoxTextView.addTextChangedListener(new TextWatcher() {
-            @Override
-            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-            }
-
-            @Override
-            public void onTextChanged(CharSequence s, int start, int before, int count) {
-            }
-
-            @Override
-            public void afterTextChanged(Editable s) {
-                if (s.length() == 0) return;
-                mManager.focusSearchBox(false, s.toString());
-                mSearchBoxTextView.setText("");
-            }
-        });
-
-        mVoiceSearchButton = (ImageView) findViewById(R.id.voice_search_button);
-        mVoiceSearchButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                mManager.focusSearchBox(true, null);
-            }
-        });
-
-        NewTabPageToolbar toolbar = (NewTabPageToolbar) findViewById(R.id.ntp_toolbar);
-        toolbar.getRecentTabsButton().setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                mManager.navigateToRecentTabs();
-            }
-        });
-        toolbar.getBookmarksButton().setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                mManager.navigateToBookmarks();
-            }
-        });
-
-        initializeSearchBoxScrollHandling();
-        addOnLayoutChangeListener(this);
-        setSearchProviderHasLogo(searchProviderHasLogo);
-
-        mPendingLoadTasks++;
-        mManager.setMostVisitedURLsObserver(this,
-                mMostVisitedDesign.getNumberOfTiles(searchProviderHasLogo));
-
-        if (mManager.shouldShowOptOutPromo()) showOptOutPromo();
-    }
-
-    private int getTabsMovedIllustration() {
-        switch (Build.MANUFACTURER.toLowerCase(Locale.US)) {
-            case "samsung":
-                return R.drawable.tabs_moved_samsung;
-            case "htc":
-                return R.drawable.tabs_moved_htc;
-            default:
-                return R.drawable.tabs_moved_nexus;
-        }
-    }
-
-    private void showOptOutPromo() {
-        ViewStub optOutPromoStub = (ViewStub) findViewById(R.id.opt_out_promo_stub);
-        mOptOutView = optOutPromoStub.inflate();
-        // Fill in opt-out text with Settings link
-        TextView optOutText = (TextView) mOptOutView.findViewById(R.id.opt_out_text);
-
-        ClickableSpan settingsLink = new ClickableSpan() {
-            @Override
-            public void onClick(View view) {
-                mManager.optOutPromoClicked(true);
-            }
-
-            // Change link formatting to use our blue control color and no underline
-            @Override
-            public void updateDrawState(android.text.TextPaint textPaint) {
-                textPaint.setColor(getContext().getResources().getColor(
-                        R.color.light_active_color));
-                textPaint.setUnderlineText(false);
-            }
-        };
-
-        optOutText.setText(SpanApplier.applySpans(
-                getContext().getString(R.string.tabs_and_apps_opt_out_text),
-                new SpanInfo("<link>", "</link>", settingsLink)));
-        optOutText.setMovementMethod(LinkMovementMethod.getInstance());
-
-        ImageView illustration = (ImageView) mOptOutView.findViewById(R.id.tabs_moved_illustration);
-        illustration.setImageResource(getTabsMovedIllustration());
-
-        mOptOutView.setVisibility(View.VISIBLE);
-        mMostVisitedLayout.setVisibility(View.GONE);
-
-        Button gotItButton = (Button) mOptOutView.findViewById(R.id.got_it_button);
-        gotItButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                mOptOutView.setVisibility(View.GONE);
-                mMostVisitedLayout.setVisibility(View.VISIBLE);
-                mManager.optOutPromoClicked(false);
-                updateMostVisitedPlaceholderVisibility();
-            }
-        });
-        mManager.optOutPromoShown();
-    }
-
-    private void updateSearchBoxOnScroll() {
-        if (mDisableUrlFocusChangeAnimations) return;
-
-        float percentage = 0;
-        // During startup the view may not be fully initialized, so we only calculate the current
-        // percentage if some basic view properties are sane.
-        if (mScrollView.getHeight() != 0 && mSearchBoxView.getTop() != 0) {
-            int scrollY = mScrollView.getScrollY();
-            percentage = Math.max(
-                    0f, Math.min(1f, scrollY / (float) mSearchBoxView.getTop()));
-        }
-
-        updateVisualsForToolbarTransition(percentage);
-
-        if (mSearchBoxScrollListener != null) {
-            mSearchBoxScrollListener.onScrollChanged(percentage);
-        }
-    }
-
-    private void initializeSearchBoxScrollHandling() {
-        final Runnable mSnapScrollRunnable = new Runnable() {
-            @Override
-            public void run() {
-                if (!mPendingSnapScroll) return;
-                int scrollY = mScrollView.getScrollY();
-                int dividerTop = mMostVisitedLayout.getTop() - mContentView.getPaddingTop();
-                if (scrollY > 0 && scrollY < dividerTop) {
-                    mScrollView.smoothScrollTo(0, scrollY < (dividerTop / 2) ? 0 : dividerTop);
-                }
-                mPendingSnapScroll = false;
-            }
-        };
-        mScrollView.setOnScrollListener(new NewTabScrollView.OnScrollListener() {
-            @Override
-            public void onScrollChanged(int l, int t, int oldl, int oldt) {
-                if (mPendingSnapScroll) {
-                    mScrollView.removeCallbacks(mSnapScrollRunnable);
-                    mScrollView.postDelayed(mSnapScrollRunnable, SNAP_SCROLL_DELAY_MS);
-                }
-                updateSearchBoxOnScroll();
-            }
-        });
-        mScrollView.setOnTouchListener(new OnTouchListener() {
-            @Override
-            @SuppressLint("ClickableViewAccessibility")
-            public boolean onTouch(View v, MotionEvent event) {
-                if (mScrollView.getHandler() == null) return false;
-                mScrollView.removeCallbacks(mSnapScrollRunnable);
-
-                if (event.getActionMasked() == MotionEvent.ACTION_CANCEL
-                        || event.getActionMasked() == MotionEvent.ACTION_UP) {
-                    mPendingSnapScroll = true;
-                    mScrollView.postDelayed(mSnapScrollRunnable, SNAP_SCROLL_DELAY_MS);
-                } else {
-                    mPendingSnapScroll = false;
-                }
-                return false;
-            }
-        });
-    }
-
-    /**
-     * Decrements the count of pending load tasks and notifies the manager when the page load
-     * is complete.
-     */
-    private void loadTaskCompleted() {
-        assert mPendingLoadTasks > 0;
-        mPendingLoadTasks--;
-        if (mPendingLoadTasks == 0) {
-            if (mLoadHasCompleted) {
-                assert false;
-            } else {
-                mLoadHasCompleted = true;
-                mManager.onLoadingComplete();
-                mMostVisitedDesign.onLoadingComplete();
-                // Load the logo after everything else is finished, since it's lower priority.
-                loadSearchProviderLogo();
-            }
-        }
-    }
-
-    /**
-     * Loads the search provider logo (e.g. Google doodle), if any.
-     */
-    private void loadSearchProviderLogo() {
-        mManager.getSearchProviderLogo(new LogoObserver() {
-            @Override
-            public void onLogoAvailable(Logo logo, boolean fromCache) {
-                if (logo == null && fromCache) return;
-                mSearchProviderLogoView.setMananger(mManager);
-                mSearchProviderLogoView.updateLogo(logo);
-                mSnapshotMostVisitedChanged = true;
-            }
-        });
-    }
-
-    /**
-     * Changes the layout depending on whether the selected search provider (e.g. Google, Bing)
-     * has a logo.
-     * @param hasLogo Whether the search provider has a logo.
-     */
-    public void setSearchProviderHasLogo(boolean hasLogo) {
-        if (hasLogo == mSearchProviderHasLogo) return;
-        mSearchProviderHasLogo = hasLogo;
-
-        mMostVisitedDesign.setSearchProviderHasLogo(mMostVisitedLayout, hasLogo);
-
-        if (!hasLogo) setUrlFocusChangeAnimationPercentInternal(0);
-
-        // Hide or show all the views above the Most Visited items.
-        int visibility = hasLogo ? View.VISIBLE : View.GONE;
-        int childCount = mContentView.getChildCount();
-        for (int i = 0; i < childCount; i++) {
-            View child = mContentView.getChildAt(i);
-            if (child == mMostVisitedLayout) break;
-            // Don't change the visibility of a ViewStub as that will automagically inflate it.
-            if (child instanceof ViewStub) continue;
-            child.setVisibility(visibility);
-        }
-
-        updateMostVisitedPlaceholderVisibility();
-
-        if (hasLogo) setUrlFocusChangeAnimationPercent(mUrlFocusChangePercent);
-        mSnapshotMostVisitedChanged = true;
-    }
-
-    /**
-     * Updates whether the NewTabPage should animate on URL focus changes.
-     * @param disable Whether to disable the animations.
-     */
-    void setUrlFocusAnimationsDisabled(boolean disable) {
-        if (disable == mDisableUrlFocusChangeAnimations) return;
-        mDisableUrlFocusChangeAnimations = disable;
-        if (!disable) setUrlFocusChangeAnimationPercent(mUrlFocusChangePercent);
-    }
-
-    /**
-     * @return Whether URL focus animations are currently disabled.
-     */
-    boolean urlFocusAnimationsDisabled() {
-        return mDisableUrlFocusChangeAnimations;
-    }
-
-    /**
-     * Specifies the percentage the URL is focused during an animation.  1.0 specifies that the URL
-     * bar has focus and has completed the focus animation.  0 is when the URL bar is does not have
-     * any focus.
-     *
-     * @param percent The percentage of the URL bar focus animation.
-     */
-    void setUrlFocusChangeAnimationPercent(float percent) {
-        mUrlFocusChangePercent = percent;
-        if (!mDisableUrlFocusChangeAnimations && mSearchProviderHasLogo) {
-            setUrlFocusChangeAnimationPercentInternal(percent);
-        }
-    }
-
-    /**
-     * @return The percentage that the URL bar is focused during an animation.
-     */
-    @VisibleForTesting
-    float getUrlFocusChangeAnimationPercent() {
-        return mUrlFocusChangePercent;
-    }
-
-    /**
-     * Unconditionally sets the percentage the URL is focused during an animation, without updating
-     * mUrlFocusChangePercent.
-     * @see #setUrlFocusChangeAnimationPercent
-     */
-    private void setUrlFocusChangeAnimationPercentInternal(float percent) {
-        mContentView.setTranslationY(percent * (-mMostVisitedLayout.getTop()
-                + mScrollView.getScrollY() + mContentView.getPaddingTop()));
-        updateVisualsForToolbarTransition(percent);
-    }
-
-    private void updateVisualsForToolbarTransition(float transitionPercentage) {
-        // Complete the full alpha transition in the first 40% of the animation.
-        float searchUiAlpha =
-                transitionPercentage >= 0.4f ? 0f : (0.4f - transitionPercentage) * 2.5f;
-        // Ensure there are no rounding issues when the animation percent is 0.
-        if (transitionPercentage == 0f) searchUiAlpha = 1f;
-
-        mSearchProviderLogoView.setAlpha(searchUiAlpha);
-        mSearchBoxView.setAlpha(searchUiAlpha);
-    }
-
-    /**
-     * Get the bounds of the search box in relation to the top level NewTabPage view.
-     *
-     * @param originalBounds The bounding region of the search box without external transforms
-     *                       applied.  The delta between this and the transformed bounds determines
-     *                       the amount of scroll applied to this view.
-     * @param transformedBounds The bounding region of the search box including any transforms
-     *                          applied by the parent view hierarchy up to the NewTabPage view.
-     *                          This more accurately reflects the current drawing location of the
-     *                          search box.
-     */
-    void getSearchBoxBounds(Rect originalBounds, Rect transformedBounds) {
-        int searchBoxX = (int) mSearchBoxView.getX();
-        int searchBoxY = (int) mSearchBoxView.getY();
-        originalBounds.set(
-                searchBoxX + mSearchBoxView.getPaddingLeft(),
-                searchBoxY + mSearchBoxView.getPaddingTop(),
-                searchBoxX + mSearchBoxView.getWidth() - mSearchBoxView.getPaddingRight(),
-                searchBoxY + mSearchBoxView.getHeight() - mSearchBoxView.getPaddingBottom());
-
-        transformedBounds.set(originalBounds);
-        View view = (View) mSearchBoxView.getParent();
-        while (view != null) {
-            transformedBounds.offset(-view.getScrollX(), -view.getScrollY());
-            if (view == this) break;
-            transformedBounds.offset((int) view.getX(), (int) view.getY());
-            view = (View) view.getParent();
-        }
-    }
-
-    /**
-     * Sets the listener for search box scroll changes.
-     * @param listener The listener to be notified on changes.
-     */
-    void setSearchBoxScrollListener(OnSearchBoxScrollListener listener) {
-        mSearchBoxScrollListener = listener;
-        if (mSearchBoxScrollListener != null) updateSearchBoxOnScroll();
-    }
-
-    @Override
-    protected void onAttachedToWindow() {
-        super.onAttachedToWindow();
-        assert mManager != null;
-
-        if (mFirstShow) {
-            loadTaskCompleted();
-            mFirstShow = false;
-        } else {
-            // Trigger a scroll update when reattaching the window to signal the toolbar that
-            // it needs to reset the NTP state.
-            if (mManager.isLocationBarShownInNTP()) updateSearchBoxOnScroll();
-        }
-    }
-
-    @Override
-    protected void onDetachedFromWindow() {
-        super.onDetachedFromWindow();
-        setUrlFocusChangeAnimationPercent(0f);
-    }
-
-    @Override
-    protected void onWindowVisibilityChanged(int visibility) {
-        super.onWindowVisibilityChanged(visibility);
-
-        if (visibility == VISIBLE) {
-            mVoiceSearchButton.setVisibility(
-                    FeatureUtilities.isRecognitionIntentPresent(getContext(), true)
-                            ? VISIBLE : GONE);
-        }
-    }
-
-    @Override
-    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
-
-        // Make the search box and logo the same width as the most visited tiles.
-        if (mMostVisitedLayout.getVisibility() != GONE) {
-            int mostVisitedWidth = MeasureSpec.makeMeasureSpec(mMostVisitedLayout.getMeasuredWidth()
-                    - mMostVisitedDesign.getMostVisitedLayoutBleed(), MeasureSpec.EXACTLY);
-            int searchBoxHeight = MeasureSpec.makeMeasureSpec(
-                    mSearchBoxView.getMeasuredHeight(), MeasureSpec.EXACTLY);
-            int logoHeight = MeasureSpec.makeMeasureSpec(
-                    mSearchProviderLogoView.getMeasuredHeight(), MeasureSpec.EXACTLY);
-            mSearchBoxView.measure(mostVisitedWidth, searchBoxHeight);
-            mSearchProviderLogoView.measure(mostVisitedWidth, logoHeight);
-        }
-    }
-
-    /**
-     * @see org.chromium.chrome.browser.compositor.layouts.content.
-     *         InvalidationAwareThumbnailProvider#shouldCaptureThumbnail()
-     */
-    boolean shouldCaptureThumbnail() {
-        if (getWidth() == 0 || getHeight() == 0) return false;
-
-        return mSnapshotMostVisitedChanged
-                || getWidth() != mSnapshotWidth
-                || getHeight() != mSnapshotHeight
-                || mScrollView.getScrollY() != mSnapshotScrollY;
-    }
-
-    /**
-     * @see org.chromium.chrome.browser.compositor.layouts.content.
-     *         InvalidationAwareThumbnailProvider#captureThumbnail(Canvas)
-     */
-    void captureThumbnail(Canvas canvas) {
-        mSearchProviderLogoView.endAnimation();
-        ViewUtils.captureBitmap(this, canvas);
-        mSnapshotWidth = getWidth();
-        mSnapshotHeight = getHeight();
-        mSnapshotScrollY = mScrollView.getScrollY();
-        mSnapshotMostVisitedChanged = false;
-    }
-
-    // OnLayoutChangeListener overrides
-
-    @Override
-    public void onLayoutChange(View v, int left, int top, int right, int bottom,
-            int oldLeft, int oldTop, int oldRight, int oldBottom) {
-        int oldWidth = oldRight - oldLeft;
-        int newWidth = right - left;
-        if (oldWidth == newWidth) return;
-
-        // Re-apply the url focus change amount after a rotation to ensure the views are correctly
-        // placed with their new layout configurations.
-        setUrlFocusChangeAnimationPercent(mUrlFocusChangePercent);
-    }
-
-    // MostVisitedURLsObserver implementation
-
-    @Override
-    public void onMostVisitedURLsAvailable(String[] titles, String[] urls) {
-        mMostVisitedLayout.removeAllViews();
-
-        MostVisitedItem[] oldItems = mMostVisitedItems;
-        int oldItemCount = oldItems == null ? 0 : oldItems.length;
-        mMostVisitedItems = new MostVisitedItem[titles.length];
-
-        final boolean isInitialLoad = !mHasReceivedMostVisitedSites;
-        LayoutInflater inflater = LayoutInflater.from(getContext());
-
-        // Add the most visited items to the page.
-        for (int i = 0; i < titles.length; i++) {
-            final String url = urls[i];
-            final String title = titles[i];
-
-            // Look for an existing item to reuse.
-            MostVisitedItem item = null;
-            for (int j = 0; j < oldItemCount; j++) {
-                MostVisitedItem oldItem = oldItems[j];
-                if (oldItem != null && TextUtils.equals(url, oldItem.getUrl())
-                        && TextUtils.equals(title, oldItem.getTitle())) {
-                    item = oldItem;
-                    item.setIndex(i);
-                    oldItems[j] = null;
-                    break;
-                }
-            }
-
-            // If nothing can be reused, create a new item.
-            if (item == null) {
-                String displayTitle = getTitleForDisplay(title, url);
-                View view = mMostVisitedDesign.createMostVisitedItemView(inflater, url, title,
-                        displayTitle, i, isInitialLoad);
-                item = new MostVisitedItem(mManager, title, url, i, view);
-            }
-
-            mMostVisitedItems[i] = item;
-            mMostVisitedLayout.addView(item.getView());
-        }
-
-        mHasReceivedMostVisitedSites = true;
-        updateMostVisitedPlaceholderVisibility();
-
-        if (isInitialLoad) {
-            loadTaskCompleted();
-            // The page contents are initially hidden; otherwise they'll be drawn centered on the
-            // page before the most visited sites are available and then jump upwards to make space
-            // once the most visited sites are available.
-            mContentView.setVisibility(View.VISIBLE);
-        }
-        mSnapshotMostVisitedChanged = true;
-    }
-
-    /**
-     * Shows the most visited placeholder ("Nothing to see here") if there are no most visited
-     * items and there is no search provider logo.
-     */
-    private void updateMostVisitedPlaceholderVisibility() {
-        boolean showPlaceholder = mHasReceivedMostVisitedSites
-                && !mManager.shouldShowOptOutPromo()
-                && mMostVisitedLayout.getChildCount() == 0
-                && !mSearchProviderHasLogo;
-
-        mNoSearchLogoSpacer.setVisibility(
-                (mSearchProviderHasLogo || showPlaceholder) ? View.GONE : View.INVISIBLE);
-
-        if (showPlaceholder) {
-            if (mMostVisitedPlaceholder == null) {
-                ViewStub mostVisitedPlaceholderStub = (ViewStub) findViewById(
-                        R.id.most_visited_placeholder_stub);
-                mMostVisitedPlaceholder = mostVisitedPlaceholderStub.inflate();
-            }
-            mMostVisitedLayout.setVisibility(GONE);
-            mMostVisitedPlaceholder.setVisibility(VISIBLE);
-            return;
-        } else if (mMostVisitedPlaceholder != null) {
-            mMostVisitedLayout.setVisibility(VISIBLE);
-            mMostVisitedPlaceholder.setVisibility(GONE);
-        }
-    }
-
-    /**
-     * Interface for creating the most visited layout and tiles.
-     * TODO(newt): delete this once a single design has been chosen.
-     */
-    private interface MostVisitedDesign {
-        int getNumberOfTiles(boolean searchProviderHasLogo);
-        int getMostVisitedLayoutId();
-        int getMostVisitedLayoutBleed();
-        void setSearchProviderHasLogo(View mostVisitedLayout, boolean hasLogo);
-        View createMostVisitedItemView(LayoutInflater inflater, String url, String title,
-                String displayTitle, int index, boolean isInitialLoad);
-        void onLoadingComplete();
-    }
-
-    /**
-     * The old most visited design, where each tile shows a thumbnail of the page, a small favicon,
-     * and the title.
-     */
-    private class ThumbnailMostVisitedDesign implements MostVisitedDesign {
-
-        private static final int NUM_TILES = 6;
-        private static final int FAVICON_CORNER_RADIUS_DP = 2;
-        private static final int FAVICON_TEXT_SIZE_DP = 10;
-        private static final int FAVICON_BACKGROUND_COLOR = 0xff969696;
-
-        private int mDesiredFaviconSize;
-        private RoundedIconGenerator mFaviconGenerator;
-
-        ThumbnailMostVisitedDesign(Context context) {
-            Resources res = context.getResources();
-            mDesiredFaviconSize = res.getDimensionPixelSize(R.dimen.most_visited_favicon_size);
-            int desiredFaviconSizeDp = Math.round(
-                    mDesiredFaviconSize / res.getDisplayMetrics().density);
-            mFaviconGenerator = new RoundedIconGenerator(
-                    context, desiredFaviconSizeDp, desiredFaviconSizeDp, FAVICON_CORNER_RADIUS_DP,
-                    FAVICON_BACKGROUND_COLOR, FAVICON_TEXT_SIZE_DP);
-        }
-
-        @Override
-        public int getNumberOfTiles(boolean searchProviderHasLogo) {
-            return NUM_TILES;
-        }
-
-        @Override
-        public int getMostVisitedLayoutId() {
-            return R.layout.most_visited_layout;
-        }
-
-        @Override
-        public int getMostVisitedLayoutBleed() {
-            return 0;
-        }
-
-        @Override
-        public void setSearchProviderHasLogo(View mostVisitedLayout, boolean hasLogo) {}
-
-        @Override
-        public View createMostVisitedItemView(LayoutInflater inflater, final String url,
-                String title, String displayTitle, int index, final boolean isInitialLoad) {
-            final MostVisitedItemView view = (MostVisitedItemView) inflater.inflate(
-                    R.layout.most_visited_item, mMostVisitedLayout, false);
-            view.init(displayTitle);
-
-            ThumbnailCallback thumbnailCallback = new ThumbnailCallback() {
-                @Override
-                public void onMostVisitedURLsThumbnailAvailable(Bitmap thumbnail) {
-                    view.setThumbnail(thumbnail);
-                    mSnapshotMostVisitedChanged = true;
-                    if (isInitialLoad) loadTaskCompleted();
-                }
-            };
-            if (isInitialLoad) mPendingLoadTasks++;
-            mManager.getURLThumbnail(url, thumbnailCallback);
-
-            FaviconImageCallback faviconCallback = new FaviconImageCallback() {
-                @Override
-                public void onFaviconAvailable(Bitmap image, String iconUrl) {
-                    if (image == null) {
-                        image = mFaviconGenerator.generateIconForUrl(url);
-                    }
-                    view.setFavicon(image);
-                    mSnapshotMostVisitedChanged = true;
-                    if (isInitialLoad) loadTaskCompleted();
-                }
-            };
-            if (isInitialLoad) mPendingLoadTasks++;
-            mManager.getLocalFaviconImageForURL(url, mDesiredFaviconSize, faviconCallback);
-
-            return view;
-        }
-
-        @Override
-        public void onLoadingComplete() {}
-    }
-
-    /**
-     * The new-fangled design for most visited tiles, where each tile shows a large icon and title.
-     */
-    private class IconMostVisitedDesign implements MostVisitedDesign {
-
-        private static final int NUM_TILES = 8;
-        private static final int NUM_TILES_NO_LOGO = 12;
-
-        private static final int ICON_CORNER_RADIUS_DP = 4;
-        private static final int ICON_TEXT_SIZE_DP = 20;
-        private static final int ICON_BACKGROUND_COLOR = 0xff787878;
-        private static final int ICON_MIN_SIZE_PX = 48;
-
-        private int mMostVisitedLayoutBleed;
-        private int mMinIconSize;
-        private int mDesiredIconSize;
-        private RoundedIconGenerator mIconGenerator;
-
-        private int mNumGrayIcons;
-        private int mNumColorIcons;
-        private int mNumRealIcons;
-
-        IconMostVisitedDesign(Context context) {
-            Resources res = context.getResources();
-            mMostVisitedLayoutBleed = res.getDimensionPixelSize(
-                    R.dimen.icon_most_visited_layout_bleed);
-            mDesiredIconSize = res.getDimensionPixelSize(R.dimen.icon_most_visited_icon_size);
-            // On ldpi devices, mDesiredIconSize could be even smaller than ICON_MIN_SIZE_PX.
-            mMinIconSize = Math.min(mDesiredIconSize, ICON_MIN_SIZE_PX);
-            int desiredIconSizeDp = Math.round(
-                    mDesiredIconSize / res.getDisplayMetrics().density);
-            mIconGenerator = new RoundedIconGenerator(
-                    context, desiredIconSizeDp, desiredIconSizeDp, ICON_CORNER_RADIUS_DP,
-                    ICON_BACKGROUND_COLOR, ICON_TEXT_SIZE_DP);
-        }
-
-        @Override
-        public int getNumberOfTiles(boolean searchProviderHasLogo) {
-            return searchProviderHasLogo ? NUM_TILES : NUM_TILES_NO_LOGO;
-        }
-
-        @Override
-        public int getMostVisitedLayoutId() {
-            return R.layout.icon_most_visited_layout;
-        }
-
-        @Override
-        public int getMostVisitedLayoutBleed() {
-            return mMostVisitedLayoutBleed;
-        }
-
-        @Override
-        public void setSearchProviderHasLogo(View mostVisitedLayout, boolean hasLogo) {
-            int paddingTop = getResources().getDimensionPixelSize(hasLogo
-                    ? R.dimen.icon_most_visited_layout_padding_top
-                    : R.dimen.icon_most_visited_layout_no_logo_padding_top);
-            mostVisitedLayout.setPadding(0, paddingTop, 0, 0);
-        }
-
-        @Override
-        public View createMostVisitedItemView(LayoutInflater inflater, final String url,
-                String title, String displayTitle, int index, final boolean isInitialLoad) {
-            final IconMostVisitedItemView view = (IconMostVisitedItemView) inflater.inflate(
-                    R.layout.icon_most_visited_item, mMostVisitedLayout, false);
-            view.setTitle(displayTitle);
-
-            LargeIconCallback iconCallback = new LargeIconCallback() {
-                @Override
-                public void onLargeIconAvailable(Bitmap icon, int fallbackColor) {
-                    if (icon == null) {
-                        mIconGenerator.setBackgroundColor(fallbackColor);
-                        icon = mIconGenerator.generateIconForUrl(url);
-                        view.setIcon(new BitmapDrawable(getResources(), icon));
-                        if (isInitialLoad) {
-                            if (fallbackColor == ICON_BACKGROUND_COLOR) {
-                                mNumGrayIcons++;
-                            } else {
-                                mNumColorIcons++;
-                            }
-                        }
-                    } else {
-                        RoundedBitmapDrawable roundedIcon = RoundedBitmapDrawableFactory.create(
-                                getResources(), icon);
-                        int cornerRadius = Math.round(ICON_CORNER_RADIUS_DP
-                                * getResources().getDisplayMetrics().density * icon.getWidth()
-                                / mDesiredIconSize);
-                        roundedIcon.setCornerRadius(cornerRadius);
-                        roundedIcon.setAntiAlias(true);
-                        roundedIcon.setFilterBitmap(true);
-                        view.setIcon(roundedIcon);
-                        if (isInitialLoad) mNumRealIcons++;
-                    }
-                    mSnapshotMostVisitedChanged = true;
-                    if (isInitialLoad) loadTaskCompleted();
-                }
-            };
-            if (isInitialLoad) mPendingLoadTasks++;
-            mManager.getLargeIconForUrl(url, mMinIconSize, iconCallback);
-
-            return view;
-        }
-
-        @Override
-        public void onLoadingComplete() {
-            RecordHistogram.recordCount100Histogram("NewTabPage.IconsGray", mNumGrayIcons);
-            RecordHistogram.recordCount100Histogram("NewTabPage.IconsColor", mNumColorIcons);
-            RecordHistogram.recordCount100Histogram("NewTabPage.IconsReal", mNumRealIcons);
-        }
-    }
-}