DevTools: Support workspace files indexing in browser process.

This patch introduces a trigram based index for file system folders added to DevTools.
Three methods are added to the interface between DevTools frontend and browser process:
 - IndexPath() performs indexing of the file system folder
 - SearchInPath() performs search in the index
 - StopIndexing() stops the indexing. This is needed because indexing is time consuming (seconds or even tens of seconds on huge folders).

The trigram based index is essentially a map from trigram to a list of files. The search method returns a list of files matching all trigrams that are present in the search query.

BUG=263313
R=pfeldman@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19851007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@215622 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 1 deletions

diff --git a/content/renderer/devtools/devtools_client.h b/content/renderer/devtools/devtools_client.h
index fedabd0..768253d 100644
--- a/content/renderer/devtools/devtools_client.h
+++ b/content/renderer/devtools/devtools_client.h
@@ -56,7 +56,14 @@ class CONTENT_EXPORT DevToolsClient
   virtual void requestFileSystems() OVERRIDE;
   virtual void addFileSystem() OVERRIDE;
   virtual void removeFileSystem(
-      const WebKit::WebString& fileSystemPath) OVERRIDE;
+      const WebKit::WebString& file_system_path) OVERRIDE;
+  virtual void indexPath(int request_id,
+                         const WebKit::WebString& file_system_path) OVERRIDE;
+  virtual void stopIndexing(int request_id) OVERRIDE;
+  virtual void searchInPath(int request_id,
+                            const WebKit::WebString& file_system_path,
+                            const WebKit::WebString& query) OVERRIDE;
+
   virtual bool isUnderTest() OVERRIDE;
 
   void OnDispatchOnInspectorFrontend(const std::string& message);