Make scrollbars and other controls tint/untint upon main window gaining

focus on Mac. This entails the following:
  - getting notifications that the main window has become or lost key
    window status (in BrowserWindowController) [new]
  - ... which tells the RenderWidgetHostView(Mac) to (de)activate [new]
  - ... which tells the RenderWidgetHost to (de)activate [new]
  - ... which sends a ViewMsg_SetActive message [new message] to the
    RenderView [new]
  - ... which tells the WebView(Impl) to (de)activate [new]
  - ... which tells its page()'s FocusController to (de)activate [new]
  - ... which is now in WebKit-land.

N.B.: "Activate" is the nomenclature used in WebKit; "focus"/"blur" can
sometimes (kind of) mean the same thing, but is ambiguous, since "focus"
has a more specific meaning.

Added a WebView unit test, which currently only tests to make sure that
SetActive() (and IsActive() [also new]) work correctly. The changes to
the other classes aren't very testable since they don't actually do
anything (other than pass things along).

BUG=12507
TEST=webkit/glue/webkit_unittest.cc


Patch by viettrungluu@gmail.com (see http://codereview.chromium.org/159048 ),
r=avi


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@21284 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 0 deletions

diff --git a/webkit/glue/webview.h b/webkit/glue/webview.h
index 81d0094..565143d 100644
--- a/webkit/glue/webview.h
+++ b/webkit/glue/webview.h
@@ -230,6 +230,12 @@ class WebView : public WebKit::WebWidget {
   virtual void SetIsTransparent(bool is_transparent) = 0;
   virtual bool GetIsTransparent() const = 0;
 
+  // Updates the WebView's active state (i.e., control tints).
+  virtual void SetActive(bool active) = 0;
+
+  // Gets the WebView's active state (i.e., state of control tints).
+  virtual bool IsActive() = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(WebView);
 };