Add UMA metrics for Android Chrome Google Search.

To analyze the impact of prefetching high-confidence search suggestions in Android Chrome, this CL,
- Adds a listener for counting Google searches from various search access points. No actual search query content is observed.
- Records the search count based on the prerendering settings.

(see trybot results in patchset #8).

BUG=382694
R=asvitkine@chromium.org, davidben@chromium.org, jam@chromium.org, pkasting@chromium.org, samarth@chromium.org

Review URL: https://codereview.chromium.org/342053002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278835 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 0 deletions

diff --git a/chrome/browser/chrome_browser_main_android.h b/chrome/browser/chrome_browser_main_android.h
index a7f31a9..a4b1de3 100644
--- a/chrome/browser/chrome_browser_main_android.h
+++ b/chrome/browser/chrome_browser_main_android.h
@@ -7,6 +7,8 @@
 
 #include "chrome/browser/chrome_browser_main.h"
 
+class GoogleSearchCounterAndroid;
+
 namespace breakpad {
 class CrashDumpManager;
 }
@@ -19,6 +21,7 @@ class ChromeBrowserMainPartsAndroid : public ChromeBrowserMainParts {
 
   // content::BrowserMainParts overrides.
   virtual void PreProfileInit() OVERRIDE;
+  virtual void PostProfileInit() OVERRIDE;
   virtual void PreEarlyInitialization() OVERRIDE;
 
   // ChromeBrowserMainParts overrides.
@@ -27,6 +30,7 @@ class ChromeBrowserMainPartsAndroid : public ChromeBrowserMainParts {
  private:
   scoped_ptr<base::MessageLoop> main_message_loop_;
   scoped_ptr<breakpad::CrashDumpManager> crash_dump_manager_;
+  scoped_ptr<GoogleSearchCounterAndroid> search_counter_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainPartsAndroid);
 };