Set bottom bar incognito state on initialize native

Previously we assumed that Chrome would always start-up
on regular browsing mode (never in incognito). The linked
bugs prove that this is not true - sometimes the app starts
in incognito. This CL sets the incognito state on initialize
with native.

Bug: 881837, 880178
Change-Id: I67cf33b4be10997c5f62a85d893febde0c278b87
Reviewed-on: https://chromium-review.googlesource.com/1213313
Commit-Queue: Pedro Amaral <amaralp@chromium.org>
Reviewed-by: Pedro Amaral <amaralp@chromium.org>
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589664}

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

@@ -117,12 +117,13 @@ public class BottomToolbarCoordinator {
             OnClickListener tabSwitcherListener, AppMenuButtonHelper menuButtonHelper,
             TabModelSelector tabModelSelector, OverviewModeBehavior overviewModeBehavior,
             WindowAndroid windowAndroid, ToolbarButtonData firstSlotTabSwitcherButtonData,
-            ToolbarButtonData secondSlotTabSwitcherButtonData) {
+            ToolbarButtonData secondSlotTabSwitcherButtonData, boolean isIncognito) {
         mMediator.setLayoutManager(layoutManager);
         mMediator.setResourceManager(resourceManager);
         mMediator.setOverviewModeBehavior(overviewModeBehavior);
         mMediator.setToolbarSwipeHandler(layoutManager.getToolbarSwipeHandler());
         mMediator.setWindowAndroid(windowAndroid);
+        setIncognito(isIncognito);
         mMediator.setTabSwitcherButtonData(
                 firstSlotTabSwitcherButtonData, secondSlotTabSwitcherButtonData);
 

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

@@ -886,7 +886,8 @@ public class ToolbarManager implements ToolbarTabController, UrlFocusChangeListe
                         mAppMenuButtonHelper, mTabModelSelector, mOverviewModeBehavior,
                         mActivity.getWindowAndroid(), firstSlotTabSwitcherButtonData,
                         createNewTabButton(
-                                wrapBottomToolbarClickListenerForIPH(newTabClickHandler)));
+                                wrapBottomToolbarClickListenerForIPH(newTabClickHandler)),
+                        tabModelSelector.getCurrentModel().isIncognito());
 
                 Tab currentTab = tabModelSelector.getCurrentTab();
                 maybeShowDuetHelpBubble(currentTab);