Use bounds instead of size for prerender requests

chrome/browser/android/offline_pages/prerender_adapter_unittest.cc

Index: chrome/browser/android/offline_pages/prerender_adapter_unittest.cc
diff --git a/chrome/browser/android/offline_pages/prerender_adapter_unittest.cc b/chrome/browser/android/offline_pages/prerender_adapter_unittest.cc
index a4d0fcaee9afc730cbb79a3b1b6693e80ee938be..d5e56276438e9299f67f6fd8d379bc8047e0ffa6 100644
--- a/chrome/browser/android/offline_pages/prerender_adapter_unittest.cc
+++ b/chrome/browser/android/offline_pages/prerender_adapter_unittest.cc
@@ -31,7 +31,7 @@ class StubPrerenderContents : public PrerenderContents {
   ~StubPrerenderContents() override;
 
   void StartPrerendering(
-      const gfx::Size& size,
+      const gfx::Rect& bounds,
       content::SessionStorageNamespace* session_storage_namespace) override;
 
   void ReportStartEvent() { NotifyPrerenderStart(); }
@@ -53,7 +53,7 @@ StubPrerenderContents::StubPrerenderContents(
 StubPrerenderContents::~StubPrerenderContents() {}
 
 void StubPrerenderContents::StartPrerendering(
-    const gfx::Size& size,
+    const gfx::Rect& bounds,
     content::SessionStorageNamespace* session_storage_namespace) {
   prerendering_has_started_ = true;
 }