Renamed CanPruneAllButVisible and PruneAllButVisible in the Navigation Controller to CanPruneAllBut…

content/public/browser/navigation_controller.h

Index: content/public/browser/navigation_controller.h
diff --git a/content/public/browser/navigation_controller.h b/content/public/browser/navigation_controller.h
index 99ed8ca6b1006e566e4303b122d9f525a31e0c91..70991647f8d0f0cf737d1356f859e02c955715b4 100644
--- a/content/public/browser/navigation_controller.h
+++ b/content/public/browser/navigation_controller.h
@@ -406,11 +406,11 @@ class NavigationController {
   // result: A B C *G*
   // If there is a pending entry after *G* in |this|, it is also preserved.
   // This ignores any pending or transient entries in |source|.  Callers must
-  // ensure that |CanPruneAllButVisible| returns true before calling this, or it
-  // will crash.
+  // ensure that |CanPruneAllButLastCommitted| returns true before calling this,
+  // or it will crash.
   virtual void CopyStateFromAndPrune(NavigationController* source) = 0;
 
-  // Returns whether it is safe to call PruneAllButVisible or
+  // Returns whether it is safe to call PruneAllButLastCommitted or
   // CopyStateFromAndPrune.  There must be a last committed entry, no transient
   // entry, and if there is a pending entry, it must be new and not an existing
   // entry.
@@ -426,12 +426,13 @@ class NavigationController {
   // sensible place to put the pending entry when it did commit, after all other
   // entries are pruned.  For example, it could be going back several entries.
   // (New pending entries are safe, because they can always commit to the end.)
-  virtual bool CanPruneAllButVisible() = 0;
+  virtual bool CanPruneAllButLastCommitted() = 0;
 
   // Removes all the entries except the last committed entry. If there is a new
   // pending navigation it is preserved.  Callers must ensure
-  // |CanPruneAllButVisible| returns true before calling this, or it will crash.
-  virtual void PruneAllButVisible() = 0;
+  // |CanPruneAllButLastCommitted| returns true before calling this, or it will
+  // crash.
+  virtual void PruneAllButLastCommitted() = 0;
 
   // Clears all screenshots associated with navigation entries in this
   // controller. Useful to reduce memory consumption in low-memory situations.