Add define to limit recommended offscreen allocations. This avoids some failures

skia/ext/bitmap_platform_device.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SKIA_EXT_BITMAP_PLATFORM_DEVICE_H_
 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_H_
 
 // This file provides an easy way to include the appropriate
 // BitmapPlatformDevice header file for your platform.
 
 #if defined(WIN32)
 #include "skia/ext/bitmap_platform_device_win.h"
 #elif defined(__APPLE__)
 #include "skia/ext/bitmap_platform_device_mac.h"
 #elif defined(ANDROID)
 #include "skia/ext/bitmap_platform_device_android.h"
 #elif defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__sun)
 #include "skia/ext/bitmap_platform_device_linux.h"
 #endif
 
+namespace skia {
+    // Returns true if it is unsafe to attempt to allocate an offscreen buffer
+    // given these dimensions.
+    inline bool RasterDeviceTooBigToAllocate(int width, int height) {
+
+#ifndef SKIA_EXT_RASTER_DEVICE_ALLOCATION_MAX
+#define SKIA_EXT_RASTER_DEVICE_ALLOCATION_MAX    (2 * 256 * 1024 * 1024)
+#endif
+
+    int bytesPerPixel = 4;
+    int64_t bytes = (int64_t)width * height * bytesPerPixel;
+    return bytes > SKIA_EXT_RASTER_DEVICE_ALLOCATION_MAX;
+  }
+}
+
 #endif  // SKIA_EXT_BITMAP_PLATFORM_DEVICE_H_