Instant Extended: Add prominent search term support

chrome/browser/ui/toolbar/toolbar_model.h

Index: chrome/browser/ui/toolbar/toolbar_model.h
diff --git a/chrome/browser/ui/toolbar/toolbar_model.h b/chrome/browser/ui/toolbar/toolbar_model.h
index c9aead57fff741cfa46fb07dc355dc6b48afb5a5..04017e8a671492fd0561ff37b0997ab13df5d736 100644
--- a/chrome/browser/ui/toolbar/toolbar_model.h
+++ b/chrome/browser/ui/toolbar/toolbar_model.h
@@ -29,6 +29,20 @@ class ToolbarModel {
 #undef DEFINE_TOOLBAR_MODEL_SECURITY_LEVEL
   };
 
+  // If search URLs may be displayed as search terms, these are the types of
+  // search terms that may be extracted from the URL.  See comments on GetText()
+  // and GetSearchTermsType().
+  enum SearchTermsType {
+    // There are no search terms.
+    NO_SEARCH_TERMS,
+    // There are regular search terms.
+    NORMAL_SEARCH_TERMS,
+    // There are search terms that require a more prominent UI. For example,
+    // if the search term looks like a URL then it should be clear to the user
+    // that a search term is being displayed.
+    URL_LIKE_SEARCH_TERMS,
+  };
+
   virtual ~ToolbarModel() {}
 
   // Returns the text for the current page's URL. This will have been formatted
@@ -50,9 +64,12 @@ class ToolbarModel {
   // Returns the URL of the current navigation entry.
   virtual GURL GetURL() const = 0;
 
-  // Returns true if a call to GetText(true) would successfully replace the URL
-  // with search terms.
-  virtual bool WouldReplaceSearchURLWithSearchTerms() const = 0;
+  // This indicates the type of search terms returned by a call to
+  // GetText(true).
+  virtual SearchTermsType GetSearchTermsType() const = 0;
+
+  // Setter for whether extraction of URL like search terms is allowed.
+  virtual void SetSupportsExtractionOfURLLikeSearchTerms(bool value) = 0;
 
   // Returns the security level that the toolbar should display.
   virtual SecurityLevel GetSecurityLevel() const = 0;