Allow floating point rectangles to be sent via IPC.

These are required by the Android find-in-page implementation. Further patches
will introduce automatic conversion from WebKit::WebFloatRect to gfx::RectF.


BUG=136762
TEST=new case added to base_unittests


Review URL: https://chromiumcodereview.appspot.com/10818011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@147974 0039d316-1c4b-4281-b951-d872f2087c98

content/public/common/common_param_traits.cc

@@ -12,6 +12,7 @@
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/range/range.h"
 #include "ui/gfx/rect.h"
+#include "ui/gfx/rect_f.h"
 
 namespace {
 
@@ -422,6 +423,34 @@ void ParamTraits<gfx::Rect>::Log(const gfx::Rect& p, std::string* l) {
                                p.width(), p.height()));
 }
 
+void ParamTraits<gfx::RectF>::Write(Message* m, const gfx::RectF& p) {
+  ParamTraits<float>::Write(m, p.x());
+  ParamTraits<float>::Write(m, p.y());
+  ParamTraits<float>::Write(m, p.width());
+  ParamTraits<float>::Write(m, p.height());
+}
+
+bool ParamTraits<gfx::RectF>::Read(const Message* m,
+                                   PickleIterator* iter,
+                                   gfx::RectF* r) {
+  float x, y, w, h;
+  if (!ParamTraits<float>::Read(m, iter, &x) ||
+      !ParamTraits<float>::Read(m, iter, &y) ||
+      !ParamTraits<float>::Read(m, iter, &w) ||
+      !ParamTraits<float>::Read(m, iter, &h))
+    return false;
+  r->set_x(x);
+  r->set_y(y);
+  r->set_width(w);
+  r->set_height(h);
+  return true;
+}
+
+void ParamTraits<gfx::RectF>::Log(const gfx::RectF& p, std::string* l) {
+  l->append(base::StringPrintf("(%f, %f, %f, %f)", p.x(), p.y(),
+                               p.width(), p.height()));
+}
+
 void ParamTraits<ui::Range>::Write(Message* m, const ui::Range& r) {
   m->WriteUInt64(r.start());
   m->WriteUInt64(r.end());

content/public/common/common_param_traits.h

@@ -33,6 +33,7 @@ struct Referrer;
 namespace gfx {
 class Point;
 class Rect;
+class RectF;
 class Size;
 }  // namespace gfx
 
@@ -128,6 +129,14 @@ struct CONTENT_EXPORT ParamTraits<gfx::Rect> {
   static void Log(const param_type& p, std::string* l);
 };
 
+template <>
+struct CONTENT_EXPORT ParamTraits<gfx::RectF> {
+  typedef gfx::RectF param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
 template <>
 struct ParamTraits<gfx::NativeWindow> {
   typedef gfx::NativeWindow param_type;

ui/ui.gyp

@@ -401,10 +401,14 @@
         'gfx/point.cc',
         'gfx/point.h',
         'gfx/point_base.h',
+        'gfx/point_f.cc',
+        'gfx/point_f.h',
         'gfx/rect.cc',
         'gfx/rect.h',
         'gfx/rect_base.h',
         'gfx/rect_base_impl.h',
+        'gfx/rect_f.cc',
+        'gfx/rect_f.h',
         'gfx/render_text.cc',
         'gfx/render_text.h',
         'gfx/render_text_mac.cc',
@@ -433,6 +437,8 @@
         'gfx/size.h',
         'gfx/size_base.h',
         'gfx/size_base_impl.h',
+        'gfx/size_f.cc',
+        'gfx/size_f.h',
         'gfx/skbitmap_operations.cc',
         'gfx/skbitmap_operations.h',
         'gfx/skia_util.cc',