chrome/blink: Add functionality for in-product help for media elements.

third_party/WebKit/Source/web/ChromeClientImpl.cpp

Index: third_party/WebKit/Source/web/ChromeClientImpl.cpp
diff --git a/third_party/WebKit/Source/web/ChromeClientImpl.cpp b/third_party/WebKit/Source/web/ChromeClientImpl.cpp
index 826b5b9cab84cb3fc333a63b674af98b1f291cd0..b38a75615e26ba75a34bdb07701a13a79ca544ba 100644
--- a/third_party/WebKit/Source/web/ChromeClientImpl.cpp
+++ b/third_party/WebKit/Source/web/ChromeClientImpl.cpp
@@ -821,6 +821,11 @@ WebRemoteFrameBase* ChromeClientImpl::GetWebRemoteFrameBase(
   return WebRemoteFrameImpl::FromFrame(frame);
 }
 
+std::unique_ptr<WebMediaIPH> ChromeClientImpl::CreateWebMediaIPH(
+    LocalFrame* frame) {
+  return WebLocalFrameImpl::FromFrame(frame)->Client()->CreateMediaIPH();
+}
+
 void ChromeClientImpl::RequestDecode(
     LocalFrame* frame,
     const PaintImage& image,