Remove DCHECK for negative sizes for Android

There are still places in downstream Android code where a negative size
is provided as width or height to the SizeBase template for set_width,
set_height and the constructor.

The DCHECK was added in:
https://chromiumcodereview.appspot.com/11410024

BUG=168927

Review URL: https://chromiumcodereview.appspot.com/11823012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@175723 0039d316-1c4b-4281-b951-d872f2087c98

ui/gfx/size_base_impl.h

@@ -16,13 +16,18 @@ namespace gfx {
 
 template<typename Class, typename Type>
 void SizeBase<Class, Type>::set_width(Type width) {
+#if !defined(OS_ANDROID)
+  // TODO(aelias): Remove these ifdefs for Android. See http://crbug.com/168927
   DCHECK(!(width < 0));
+#endif
   width_ = width < 0 ? 0 : width;
 }
 
 template<typename Class, typename Type>
 void SizeBase<Class, Type>::set_height(Type height) {
+#if !defined(OS_ANDROID)
   DCHECK(!(height < 0));
+#endif
   height_ = height < 0 ? 0 : height;
 }
 
@@ -30,8 +35,10 @@ template<typename Class, typename Type>
 SizeBase<Class, Type>::SizeBase(Type width, Type height)
     : width_(width < 0 ? 0 : width),
       height_(height < 0 ? 0 : height) {
+#if !defined(OS_ANDROID)
   DCHECK(!(width < 0));
   DCHECK(!(height < 0));
+#endif
 }
 
 }  // namespace gfx