check for null on extremely large images

The new PrivateAndroidImageSourceRec allocator may return null
if the image sizes are extremely large. Check for this to avoid
a null deference.

Change-Id: Ia129a87a1794a2696a4e1e415a940ac2b6b50064
http://b/2689053

1 files changed, 1 insertions, 1 deletions

diff --git a/WebCore/platform/graphics/android/ImageSourceAndroid.cpp b/WebCore/platform/graphics/android/ImageSourceAndroid.cpp
index 914a9d6..c0ef611 100644
--- a/WebCore/platform/graphics/android/ImageSourceAndroid.cpp
+++ b/WebCore/platform/graphics/android/ImageSourceAndroid.cpp
@@ -303,7 +303,7 @@ void ImageSource::setData(SharedBuffer* data, bool allDataReceived)
     }
 
     PrivateAndroidImageSourceRec* decoder = m_decoder.m_image;
-    if (allDataReceived && !decoder->fAllDataReceived) {
+    if (allDataReceived && decoder && !decoder->fAllDataReceived) {
         decoder->fAllDataReceived = true;
 
         SkBitmap* bm = &decoder->bitmap();