Chromium -> Mojo roll.

skia/ext/SkDiscardableMemory_chrome.h

Index: skia/ext/SkDiscardableMemory_chrome.h
diff --git a/skia/ext/SkDiscardableMemory_chrome.h b/skia/ext/SkDiscardableMemory_chrome.h
index 50946e64918c8462ec9a516ca2f4ba95dbbe5ab5..1be4516be168b90648940b5dbb03f13747a29963 100644
--- a/skia/ext/SkDiscardableMemory_chrome.h
+++ b/skia/ext/SkDiscardableMemory_chrome.h
@@ -5,10 +5,13 @@
 #ifndef SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
 #define SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
 
-#include "base/memory/discardable_memory.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/skia/src/core/SkDiscardableMemory.h"
 
+namespace base {
+class DiscardableMemory;
+}
+
 // This class implements the SkDiscardableMemory interface using
 // base::DiscardableMemory.
 class SK_API SkDiscardableMemoryChrome : public SkDiscardableMemory {