Move uncoupled code out of skia/ext/platform_device.h

skia/ext/platform_device_mac.cc

Index: skia/ext/platform_device_mac.cc
diff --git a/skia/ext/platform_device_mac.cc b/skia/ext/platform_device_mac.cc
index 065b7670556380c54872f7ebea5f0192b712d73a..5dfa211c3b4abf7a3cd106ef414dec887b2edf1b 100644
--- a/skia/ext/platform_device_mac.cc
+++ b/skia/ext/platform_device_mac.cc
@@ -7,21 +7,9 @@
 
 #import <ApplicationServices/ApplicationServices.h>
 #include "skia/ext/skia_utils_mac.h"
-#include "third_party/skia/include/core/SkMatrix.h"
-#include "third_party/skia/include/core/SkPath.h"
-#include "third_party/skia/include/core/SkTypes.h"
-#include "third_party/skia/include/core/SkUtils.h"
 
 namespace skia {
 
-CGContextRef GetBitmapContext(SkBaseDevice* device) {
-  PlatformDevice* platform_device = GetPlatformDevice(device);
-  if (platform_device)
-    return platform_device->GetBitmapContext();
-
-  return NULL;
-}
-
 CGContextRef PlatformDevice::BeginPlatformPaint() {
   return GetBitmapContext();
 }