Revert of Set user_gesture bit at NavigationHandle creation time.

content/common/navigation_params.h

Index: content/common/navigation_params.h
diff --git a/content/common/navigation_params.h b/content/common/navigation_params.h
index 0937e4202609deb9abcc219e0e62ffd7c4a8c2ff..7fce0cc4794f0673bdbed27805d44299a7d6bfc5 100644
--- a/content/common/navigation_params.h
+++ b/content/common/navigation_params.h
@@ -15,7 +15,6 @@
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "content/common/frame_message_enums.h"
-#include "content/common/navigation_gesture.h"
 #include "content/common/resource_request_body_impl.h"
 #include "content/public/common/page_state.h"
 #include "content/public/common/referrer.h"
@@ -58,7 +57,6 @@ struct CONTENT_EXPORT CommonNavigationParams {
       const Referrer& referrer,
       ui::PageTransition transition,
       FrameMsg_Navigate_Type::Value navigation_type,
-      NavigationGesture gesture,
       bool allow_download,
       bool should_replace_current_entry,
       base::TimeTicks ui_timestamp,
@@ -86,9 +84,6 @@ struct CONTENT_EXPORT CommonNavigationParams {
   // Type of navigation.
   FrameMsg_Navigate_Type::Value navigation_type;
 
-  // Indicates the gesture type.
-  NavigationGesture gesture;
-
   // Allows the URL to be downloaded (true by default).
   // Avoid downloading when in view-source mode.
   bool allow_download;
@@ -149,6 +144,7 @@ struct CONTENT_EXPORT BeginNavigationParams {
   BeginNavigationParams();
   BeginNavigationParams(std::string headers,
                         int load_flags,
+                        bool has_user_gesture,
                         bool skip_service_worker,
                         RequestContextType request_context_type);
   BeginNavigationParams(const BeginNavigationParams& other);
@@ -159,6 +155,9 @@ struct CONTENT_EXPORT BeginNavigationParams {
   // net::URLRequest load flags (net::LOAD_NORMAL) by default).
   int load_flags;
 
+  // True if the request was user initiated.
+  bool has_user_gesture;
+
   // True if the ServiceWorker should be skipped.
   bool skip_service_worker;
 
@@ -233,7 +232,8 @@ struct CONTENT_EXPORT RequestNavigationParams {
                           int current_history_list_offset,
                           int current_history_list_length,
                           bool is_view_source,
-                          bool should_clear_history_list);
+                          bool should_clear_history_list,
+                          bool has_user_gesture);
   RequestNavigationParams(const RequestNavigationParams& other);
   ~RequestNavigationParams();
 
@@ -329,6 +329,9 @@ struct CONTENT_EXPORT RequestNavigationParams {
   // The AppCache host id to be used to identify this navigation.
   int appcache_host_id;
 
+  // True if the navigation originated due to a user gesture.
+  bool has_user_gesture;
+
 #if defined(OS_ANDROID)
   // The real content of the data: URL. Only used in Android WebView for
   // implementing LoadDataWithBaseUrl API method to circumvent the restriction