webapps: initial addition of splash screen icon downloading

chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerManager.java b/chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerManager.java
index 31e4aa42a3b16a93691970bc68f3e33f52e24399..e5eb34358b32777d778d3c3d9754d26b4fde6e2e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/banners/AppBannerManager.java
@@ -11,7 +11,6 @@ import org.chromium.base.ApplicationStatus;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
-import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ShortcutHelper;
 import org.chromium.chrome.browser.tab.EmptyTabObserver;
 import org.chromium.chrome.browser.tab.Tab;
@@ -70,11 +69,9 @@ public class AppBannerManager extends EmptyTabObserver {
      * @param tab Tab that the AppBannerManager will be attached to.
      */
     public AppBannerManager(Tab tab, Context context) {
-        int iconSizePx = context.getResources().getDimensionPixelSize(R.dimen.app_banner_icon_size);
-        float density = context.getResources().getDisplayMetrics().density;
-        int iconSizeDp = (int) (iconSizePx / density);
-
-        mNativePointer = nativeInit(iconSizeDp);
+        mNativePointer = nativeInit(
+                ShortcutHelper.getIdealSplashImageSizeInDp(context.getResources()),
+                ShortcutHelper.getIdealIconSizeInDp(context.getResources()));
         mTab = tab;
         updatePointers();
     }
@@ -168,7 +165,7 @@ public class AppBannerManager extends EmptyTabObserver {
     }
 
     private static native boolean nativeIsEnabled();
-    private native long nativeInit(int iconSize);
+    private native long nativeInit(int idealSplashImageSizeInDp, int idealIconSizeInDp);
     private native void nativeDestroy(long nativeAppBannerManagerAndroid);
     private native void nativeReplaceWebContents(long nativeAppBannerManagerAndroid,
             WebContents webContents);