components: Add out-of-line copy ctors for complex classes.

components/history/core/browser/history_types.cc

Index: components/history/core/browser/history_types.cc
diff --git a/components/history/core/browser/history_types.cc b/components/history/core/browser/history_types.cc
index 732c8c23a30815df2c7d5b61bc1c740dcc3277f2..090fded67b8fe013dce720e94a23934f56c041f4 100644
--- a/components/history/core/browser/history_types.cc
+++ b/components/history/core/browser/history_types.cc
@@ -203,6 +203,8 @@ MostVisitedURL::MostVisitedURL(const GURL& url,
       last_forced_time(last_forced_time) {
 }
 
+MostVisitedURL::MostVisitedURL(const MostVisitedURL& other) = default;
+
 MostVisitedURL::~MostVisitedURL() {}
 
 // FilteredURL -----------------------------------------------------------------
@@ -229,12 +231,16 @@ FilteredURL::ExtendedInfo::ExtendedInfo()
 
 Images::Images() {}
 
+Images::Images(const Images& other) = default;
+
 Images::~Images() {}
 
 // TopSitesDelta --------------------------------------------------------------
 
 TopSitesDelta::TopSitesDelta() {}
 
+TopSitesDelta::TopSitesDelta(const TopSitesDelta& other) = default;
+
 TopSitesDelta::~TopSitesDelta() {}
 
 // HistoryAddPageArgs ---------------------------------------------------------
@@ -271,6 +277,9 @@ HistoryAddPageArgs::HistoryAddPageArgs(const GURL& url,
       did_replace_entry(did_replace_entry) {
 }
 
+HistoryAddPageArgs::HistoryAddPageArgs(const HistoryAddPageArgs& other) =
+    default;
+
 HistoryAddPageArgs::~HistoryAddPageArgs() {}
 
 // ThumbnailMigration ---------------------------------------------------------
@@ -308,6 +317,8 @@ FaviconBitmap::FaviconBitmap()
       icon_id(0) {
 }
 
+FaviconBitmap::FaviconBitmap(const FaviconBitmap& other) = default;
+
 FaviconBitmap::~FaviconBitmap() {
 }
 
@@ -316,6 +327,8 @@ FaviconBitmap::~FaviconBitmap() {
 ExpireHistoryArgs::ExpireHistoryArgs() {
 }
 
+ExpireHistoryArgs::ExpireHistoryArgs(const ExpireHistoryArgs& other) = default;
+
 ExpireHistoryArgs::~ExpireHistoryArgs() {
 }