Support fullscreen video for content shell

content/shell/android/java/src/org/chromium/content_shell/Shell.java

Index: content/shell/android/java/src/org/chromium/content_shell/Shell.java
diff --git a/content/shell/android/java/src/org/chromium/content_shell/Shell.java b/content/shell/android/java/src/org/chromium/content_shell/Shell.java
index cb8c99542748ac428e25ca8d973b5d7c74fbda1f..c6ca85f17d2b2ade40988d8572b52c0b0fd654b3 100644
--- a/content/shell/android/java/src/org/chromium/content_shell/Shell.java
+++ b/content/shell/android/java/src/org/chromium/content_shell/Shell.java
@@ -63,6 +63,7 @@ public class Shell extends LinearLayout {
     private WindowAndroid mWindow;
 
     private boolean mLoading = false;
+    private boolean mIsFullscreen = false;
 
     /**
      * Constructor for inflating via XML.
@@ -261,11 +262,13 @@ public class Shell extends LinearLayout {
 
     @CalledByNative
     private void toggleFullscreenModeForTab(boolean enterFullscreen) {
+        mIsFullscreen = enterFullscreen;
+        mWebContents.wasResized();

[Ted C, 2014/10/02 21:52:45]

Why is this necessary?

Could we just do:
mUrlTextView.setVisibility(enterFullscreen ? GONE : VISIBLE);

That should trigger a resize on the content view, which I think is more correct
and avoids adding the wasResized function which already exists on
ContentViewCore, and I think shouldn't be added to WebContentsAndroid.

[qinmin, 2014/10/02 22:44:30]

Done. Set the whole toolbar's visibility to false when we enter fullscreen,
setting textview alone will still show the navigation buttons.

On 2014/10/02 21:52:45, Ted C wrote:

     }
 
     @CalledByNative
     private boolean isFullscreenForTabOrPending() {
-        return false;
+        return mIsFullscreen;
     }
 
     @SuppressWarnings("unused")