Implement tiles synchronization

When a tiledPage is painted, we want to avoid updating the base
layer. GLWebViewState and WebView.cpp are now refcounting the
base layer, delaying updating the base layer we use to paint
until we are done with a full tile paint.

bug:3224744
Change-Id: Ica2b8f1db146a1e059fc0735dc53107fc40da07a

1 files changed, 2 insertions, 2 deletions

diff --git a/WebCore/platform/graphics/android/BaseTile.cpp b/WebCore/platform/graphics/android/BaseTile.cpp
index 35de698..c45b138 100644
--- a/WebCore/platform/graphics/android/BaseTile.cpp
+++ b/WebCore/platform/graphics/android/BaseTile.cpp
@@ -117,7 +117,7 @@ void BaseTile::reserveTexture()
 
 void BaseTile::removeTexture(BackedDoubleBufferedTexture* texture)
 {
-    XLOG("%x removeTexture res: %x...", this, m_texture);
+    XLOG("%x removeTexture res: %x... page %x", this, m_texture, m_page);
     // We update atomically, so paintBitmap() can see the correct value
     android::AutoMutex lock(m_atomicSync);
     if (m_texture == texture)
@@ -164,7 +164,7 @@ void BaseTile::draw(float transparency, SkRect& rect)
     // No need to mutex protect reads of m_texture as it is only written to by
     // the consumer thread.
     if (!m_texture) {
-        XLOG("%x (%d, %d) trying to draw, but no m_texture!", this, x(), y());
+        XLOG("%x on page %x (%d, %d) trying to draw, but no m_texture!", this, m_page, x(), y());
         return;
     }