Replaced PassRefPtr copies with moves in Source/platform.

third_party/WebKit/Source/platform/graphics/BitmapImage.cpp

Index: third_party/WebKit/Source/platform/graphics/BitmapImage.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/BitmapImage.cpp b/third_party/WebKit/Source/platform/graphics/BitmapImage.cpp
index 63aae48e329791a7bd2998ea1170baa8370c6da3..9f29f85aaeb796b88454c0a80e4bfe5811f8bddc 100644
--- a/third_party/WebKit/Source/platform/graphics/BitmapImage.cpp
+++ b/third_party/WebKit/Source/platform/graphics/BitmapImage.cpp
@@ -200,7 +200,7 @@ Image::SizeAvailability BitmapImage::setData(PassRefPtr<SharedBuffer> data, bool
 
     // If ImageSource::setData() fails, we know that this is a decode error.
     // Report size available so that it gets registered as such in ImageResource.
-    if (!m_source.setData(data, allDataReceived))
+    if (!m_source.setData(std::move(data), allDataReceived))
         return SizeAvailable;
 
     return dataChanged(allDataReceived);