[Impeller] Import cstring for memcpy. (#45408)

bdero · web-flow · commit 5f0db948a629 · 2023-09-01T22:11:02.000-07:00
Fixes builds against some STLs (detected in impeller-cmake [ubuntu build](https://github.com/bdero/impeller-cmake/actions/runs/6020031888/job/16330726595)).
diff --git a/impeller/entity/contents/text_contents.cc b/impeller/entity/contents/text_contents.cc
@@ -4,6 +4,7 @@
 
 #include "impeller/entity/contents/text_contents.h"
 
+#include <cstring>
 #include <optional>
 #include <type_traits>
 #include <utility>
@@ -193,7 +194,7 @@ bool TextContents::Render(const ContentContext& renderer,
 
             for (const Point& point : unit_points) {
               vtx.unit_position = point;
-              ::memcpy(vtx_contents++, &vtx, sizeof(VS::PerVertexData));
+              std::memcpy(vtx_contents++, &vtx, sizeof(VS::PerVertexData));
             }
           }
         }

Original file line number	Diff line number	Diff line change
`@@ -4,6 +4,7 @@`
`4`	`4`
`5`	`5`	`#include "impeller/entity/contents/text_contents.h"`
`6`	`6`
	`7`	`+#include <cstring>`
`7`	`8`	`#include <optional>`
`8`	`9`	`#include <type_traits>`
`9`	`10`	`#include <utility>`
`@@ -193,7 +194,7 @@ bool TextContents::Render(const ContentContext& renderer,`
`193`	`194`
`194`	`195`	`for (const Point& point : unit_points) {`
`195`	`196`	`vtx.unit_position = point;`
`196`		`- ::memcpy(vtx_contents++, &vtx, sizeof(VS::PerVertexData));`
	`197`	`+ std::memcpy(vtx_contents++, &vtx, sizeof(VS::PerVertexData));`
`197`	`198`	`}`
`198`	`199`	`}`
`199`	`200`	`}`