[blimp] Add support for having multiple tabs

chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/LayoutManagerDocument.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.compositor.layouts;
 
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.RectF;
 import android.os.Build;
@@ skipping 242 matching lines @@
         TabModelSelector selector = getTabModelSelector();
         Tab tab = selector.getTabById(tabId);
         if (tab == null) return;
 
         LayoutTab layoutTab = mTabCache.get(tabId);
         if (layoutTab == null) return;
 
         String url = tab.getUrl();
         boolean isNativePage = url != null && url.startsWith(UrlConstants.CHROME_NATIVE_SCHEME);
         int themeColor = tab.getThemeColor();
-        boolean canUseLiveTexture =
-                tab.getContentViewCore() != null && !tab.isShowingSadTab() && !isNativePage;
+        // TODO(xingliu): Remove this override themeColor for Blimp tabs. See crbug.com/644774.
+        if (tab.isBlimpTab() && tab.getBlimpContents() != null) {
+            themeColor = tab.getBlimpContents().getThemeColor();
+        }
+
+        boolean canUseLiveTexture = tab.isBlimpTab()
+                || tab.getContentViewCore() != null && !tab.isShowingSadTab() && !isNativePage;
+
         boolean needsUpdate = layoutTab.initFromHost(tab.getBackgroundColor(), tab.shouldStall(),
                 canUseLiveTexture, themeColor, ColorUtils.getTextBoxColorForToolbarBackground(
                                     mContext.getResources(), tab, themeColor),
                 ColorUtils.getTextBoxAlphaForToolbarBackground(tab));
         if (needsUpdate) requestUpdate();
 
         mHost.requestRender();
     }
 
     @Override
@@ skipping 123 matching lines @@
                     || !FeatureUtilities.isDocumentModeEligible(mHost.getContext())
                     || !DeviceClassManager.enableToolbarSwipe()
                     || (manager != null && manager.getPersistentFullscreenMode())) {
                 return false;
             }
 
             return direction == ScrollDirection.LEFT || direction == ScrollDirection.RIGHT;
         }
     }
 }