Initial version of chrome.experimental.sidebar extension API.

BUG=51084
TEST=Run interactive_ui_tests and browser_tests. 

New: 
- sidebar Extension API (design doc: https://docs.google.com/a/google.com/Doc?docid=0AV4Qg3xyZ8RQZGZtbWIydDJfNWc0eHJtbmRm&hl=en); 
- Sidebar panel in Chrome browser view; 

Original review=http://codereview.chromium.org/2836040/show
Patch by alekseys@google.com

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@56716 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 60 insertions, 0 deletions

diff --git a/chrome/common/render_messages.h b/chrome/common/render_messages.h
index 1ffee93..8f6c8ad 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -18,6 +18,7 @@
 #include "base/ref_counted.h"
 #include "base/shared_memory.h"
 #include "base/string16.h"
+#include "base/values.h"
 #include "chrome/common/common_param_traits.h"
 #include "chrome/common/css_colors.h"
 #include "chrome/common/dom_storage_common.h"
@@ -867,6 +868,27 @@ enum ViewHostMsg_EnablePreferredSizeChangedMode_Flags {
   kPreferredSizeHeightThisIsSlow = 1 << 1,
 };
 
+// Parameters structure for ViewHostMsg_ExtensionRequest.
+struct ViewHostMsg_DomMessage_Params {
+  // Message name.
+  std::string name;
+
+  // List of message arguments.
+  ListValue arguments;
+
+  // URL of the frame request was sent from.
+  GURL source_url;
+
+  // Unique request id to match requests and responses.
+  int request_id;
+
+  // True if request has a callback specified.
+  bool has_callback;
+
+  // True if request is executed in response to an explicit user gesture.
+  bool user_gesture;
+};
+
 namespace IPC {
 
 template <>
@@ -2711,6 +2733,44 @@ struct ParamTraits<ViewMsg_DeviceOrientationUpdated_Params> {
     l->append(")");
   }
 };
+// Traits for ViewHostMsg_DomMessage_Params structure to pack/unpack.
+template <>
+struct ParamTraits<ViewHostMsg_DomMessage_Params> {
+  typedef ViewHostMsg_DomMessage_Params param_type;
+  static void Write(Message* m, const param_type& p) {
+    WriteParam(m, p.name);
+    WriteParam(m, p.arguments);
+    WriteParam(m, p.source_url);
+    WriteParam(m, p.request_id);
+    WriteParam(m, p.has_callback);
+    WriteParam(m, p.user_gesture);
+  }
+  static bool Read(const Message* m, void** iter, param_type* p) {
+    return
+      ReadParam(m, iter, &p->name) &&
+      ReadParam(m, iter, &p->arguments) &&
+      ReadParam(m, iter, &p->source_url) &&
+      ReadParam(m, iter, &p->request_id) &&
+      ReadParam(m, iter, &p->has_callback) &&
+      ReadParam(m, iter, &p->user_gesture);
+  }
+  static void Log(const param_type& p, std::string* l) {
+    l->append("(");
+    LogParam(p.name, l);
+    l->append(", ");
+    LogParam(p.arguments, l);
+    l->append(", ");
+    LogParam(p.source_url, l);
+    l->append(", ");
+    LogParam(p.request_id, l);
+    l->append(", ");
+    LogParam(p.has_callback, l);
+    l->append(", ");
+    LogParam(p.user_gesture, l);
+    l->append(")");
+  }
+};
+
 }  // namespace IPC
 
 #define MESSAGES_INTERNAL_FILE "chrome/common/render_messages_internal.h"